Question 1 :
An earth satellite of mass {tex} m {/tex} revolves in a circular orbit at a height {tex} h {/tex} from the surface of the earth. {tex} R {/tex} is the radius of the earth and {tex} g {/tex} is acceleration due to gravity at the surface of the earth. The velocity of the satellite in the orbit is given by
Question 2 :
A satellite whose mass is {tex} M , {/tex} is revolving in circular orbit of radius {tex} r {/tex} around the earth. Time of revolution of satellite is
Question 4 :
A straight rod of length <em>L</em> extends from <em>x</em> = <em>a</em> to <em>x</em> = <em>L</em> + <em>a</em>. The gravitational force exerted by it on a point mass <em>m</em> at <em>x</em> = 0 if the linear density of rod is <font face="Symbol">µ</font> = <em>A</em> + <em>Bx</em><sup>2</sup> (where <em>x</em> is <em>x</em> coordinates) is
Question 5 :
If a person can jump on the earth's surface upto a height 2m. His jump on a satellite where acceleration due to gravity is 1.96 m/s<sup>2</sup>, will be
Question 6 :
Spot the wrong statement: <br>The acceleration due to gravity 'g' decreases if
Question 7 :
Weight of a body of mass {tex} m {/tex} decreases by {tex} 1 \% {/tex} when it is raised to height {tex} h {/tex} above the earth's surface. If the body is taken to a depth {tex} h {/tex} in a mine, change in its weight is
Question 8 :
A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance
Question 9 :
The value of escape velocity on a certain planet is {tex} 2 ~ k m / s {/tex}. Then the value of orbital speed for a satellite orbiting close to its surface is
Question 10 :
Two bodies of masses <em>M</em><sub>1</sub> = <em>m</em> and <em>M</em><sub>2</sub> = 4m are placed at a distance <em>r</em>. The gravitational potential at a point on the line joining them where the gravitational field is zero is
Question 13 :
A mass {tex} M {/tex} is split into two parts, {tex} m {/tex} and {tex} ( M - m ) , {/tex} which are then separated by a certain distance. What ratio of {tex} m / M {/tex} maximizes the gravitational force between the two parts
Question 14 :
Assuming earth to be a sphere of a uniform density, what is the value of gravitational acceleration in a mine {tex} 100 ~ k m {/tex} below the earth's surface (Given {tex} R = 6400 \mathrm { km } ) {/tex}
Question 16 :
Three points masses each of mass <em>m</em> rotate in a circle of radius <em>r</em> with constant angular velocity ω due to their mutual gravitational attraction. If at any instant, the masses are on the vertex of an equilateral triangle of side <em>a</em>, then the value of ω is
Question 17 :
The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration due to gravity
Question 18 :
5 kg and 10 kg spheres are 1 m apart. Where the gravitation field intensity be zero from 5 kg block.
Question 19 :
{tex}\mathbf {Assertion}{/tex}: Gravitational field is zero both at centre and infinity.<br>{tex}\mathbf {Reason}{/tex} : The dimensions of gravitational field is {tex} \left[ L T ^ { - 2 } \right] {/tex}
Question 20 :
The escape velocity of a rocket launched from the surface of the earth<br>
Question 21 :
For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is<br>
Question 22 :
Which of the following astronomer first proposed that sun is static and earth rounds sun<br>
Question 23 :
If the radius of earth's orbit is made {tex} 1 / 4 , {/tex} the duration of an year will become
Question 24 :
The time period of an earth satellite in circular orbit is independent of
Question 25 :
Two particle of masses 4 kg and 8 kg are separated by a distance of 12 m. If they are moving towards each other under the influence of a mutual force of attraction, then the two particles will meet each other at a distance of
Question 26 :
Two satellites of masses {tex} m _ { 1 } {/tex} and {tex} m _ { 2 } \left( m _ { 1 } > m _ { 2 } \right) {/tex} are revolving round the earth in circular orbits of radius {tex} r _ { 1 } {/tex} and {tex} r _ { 2 } \left( r _ { 1 } > r _ { 2 } \right) {/tex} respectively. Which of the following statements is true regarding their speeds {tex} v _ { 1 } {/tex} and {tex} v _ { 2 } ? {/tex}
Question 27 :
Two spheres of same radius and same material are placed in contact with each other. The gravitational force between them is
Question 29 :
Which of the following is TRUE about acceleration due to gravity.<br>
Question 30 :
As we go from the equator to the poles, the value of {tex} g {/tex}
Question 31 :
A geostationary satellite orbits around the earth in a circular orbit of radius {tex} 36000\ { km } {/tex}. Then, the time period of a satellite orbiting a few hundred kilometres above the earth's surface {tex} \left( R _ { \text {Earth } } = 6400 \mathrm { km } \right) {/tex} will approximately be
Question 32 :
A comet travels around the sun in elliptical orbit. Its mass is 10<sup>8</sup> kg when 2.5 × 10<sup>11</sup> m away its speed is 2 × 10<sup>4</sup> ms<sup>-1</sup>. Find the change in KE when it has reached 5 × 10<sup>10</sup> m away from the sun.
Question 33 :
Which of the following Kepler's laws is also known as harmonic law ?
Question 34 :
The orbital angular momentum of a satellite revolving at a distance {tex} r {/tex} from the centre is {tex} L {/tex}. If the distance is increased to {tex} 16 r {/tex}, then the new angular momentum will be
Question 35 :
A 75 kg astronaut is repairing Hubble telescope at a height of 600 km above the surface of the earth. Find the his weight there.
Question 36 :
A satellite of mass <em>m</em> is orbiting around the earth at a height <em>h</em> above the surface of the earth. Mass of the earth is <em>M</em> and its radius is <em>R</em>. The angular momentum of the satellite is independent of
Question 37 :
Two spheres of masses m and M are situated in air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be -
Question 38 :
Two planets at mean distance {tex} d _ { 1 } {/tex} and {tex} d _ { 2 } {/tex} from the sun and their frequencies are {tex} n {/tex} and {tex} n {/tex} respectively then
Question 39 :
The gravitational mass of a body on the earth is <em>M</em>. The inertial mass of the same body on the moon will be
Question 41 :
Gas escapes from the surface of a planet because it acquires an escape velocity. The escape velocity will depend on which of the following factors :<br> I. Mass of the planet<br> II. Mass of the particle escaping<br> III. Temperature of the planet<br> IV. Radius of the planet<br> Select the correct answer from the codes given below:
Question 42 :
A body of mass {tex} m {/tex} is placed on the earth's surface. It is taken from the earth's surface to a height {tex} h = 3 R . {/tex} The change in gravitational potential energy of the body is
Question 43 :
What is the weight of a body at a distance 2<em>r</em> from the centre of the earth if the gravitational potential energy of the body at a distance <em>r</em> from the centre of the earth is <em>U</em>?
Question 44 :
The kinetic energy needed to project a body of mass {tex} m {/tex} from the earth surface (radius {tex} R ) {/tex} to infinity is
Question 45 :
A body of mass <em>m</em> is dropped from a height <em>nR</em> above the surface of the earth (here <em>R</em> is the radius of the earth). The speed at which the body hits the surface of the earth is
Question 46 :
When a satellite going round the earth in a circular orbit of radius {tex} r {/tex}<br>and speed {tex} v {/tex} loses some of its energy, then {tex} r {/tex} and {tex} v {/tex} change as<br>
Question 47 :
The time period of a satellite of Earth is 5 hours. If the separation between the Earth and the satellite is increased to 4 times the previous value, the new time period will become -
Question 49 :
When a body is taken from the equator to the poles, its weight
Question 50 :
Two satellites S and S' revolve around the earth at distances 3R and 6R from the centre of the earth. Their periods of revolution will be in the ratio :
Question 51 :
The value of g on the surface of earth is 9.8 m/s<sup>2</sup> & the radius of earth is 6400 km. The avg. density of earth in kg/m<sup>3</sup> will be
Question 52 :
Acceleration due to gravity is {tex} 'g' {/tex} on the surface of the earth. The value of acceleration due to gravity at a height of {tex} 32 \mathrm { km } {/tex} above earth's surface is (Radius of the earth {tex} = 6400 \mathrm { km } ) {/tex}
Question 53 :
A satellite is to revolve round the earth in a circle of radius {tex} {8000} {/tex} {tex} k m . {/tex} The speed at which this satellite be projected into an orbit, will<br>be<br>
Question 54 :
A pendulum having a bob of mass m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water, the tension in the string is T<sub>0</sub>. Find the difference between tensions when the ship is sailing with a velocity v.
Question 55 :
When you move from equator to pole, the value of acceleration due to gravity (g)
Question 56 :
The gravitational force between two stones of mass {tex}1 kg{/tex} each separated by a distance of {tex}1 metre{/tex} in vacuum is
Question 57 :
A particle of mass 10 g is kept on the surface of uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle far away from the sphere.
Question 58 :
{tex}\mathbf {Assertion}{/tex} :The ratio of inertial mass to gravitational mass is equal to one.<br>{tex}\mathbf {Reason}{/tex} : The inertial mass and gravitational mass of a body are equivalent.
Question 59 :
{tex}\mathbf {Assertion}{/tex} : If an earth satellite moves to a lower orbit, there is some dissipation of energy but the satellite speed increases.<br>{tex}\mathbf {Reason}{/tex} :The speed of satellite is a constant quantity.
Question 61 :
The ratio of the {tex} K.E. {/tex} required to be given to the satellite to escape earth's gravitational field to the {tex} K.E. {/tex} required to be given so that the satellite moves in a circular orbit just above earth atmosphere is
Question 62 :
If {tex} r {/tex} represents the radius of the orbit of a satellite of mass {tex} m {/tex} moving around a planet of mass {tex} M , {/tex} the velocity of the satellite is given by
Question 63 :
A point <em>P</em> {tex}\left( R\sqrt{3},\ 0,\ 0 \right){/tex} lies on the axis of a ring of mass <em>M</em> and radius <em>R</em>. The ring is located in <em>y</em>-<em>z</em> plane with its centre at origin <em>O</em>. A small particle of mass <em>m</em> starts from <em>P</em> and reaches <em>O</em> under gravitational attraction only. Its speed at <em>O</em> will be
Question 64 :
The time period of a simple pendulum on a freely moving artificial<br>satellite is<br>
Question 65 :
Four particles each of mass {tex} M , {/tex} are located at the vertices of a square with side {tex} L {/tex}. The gravitational potential due to this at the centre of the square is<br>
Question 66 :
Both earth and moon are subjected to the gravitational force of the sun. As observed from the sun, the orbit of the moon
Question 67 :
A satellite of mass {tex} m {/tex} is circulating around the earth with constant angular velocity. If radius of the orbit is {tex} R _ { 0 } {/tex} and mass of the earth {tex} M , {/tex} the angular momentum about the centre of the earth is
Question 68 :
If three particles each of mass <em>M</em> are placed at the three corners of an equilateral triangle of side <em>a</em>, the forces exerted by this system on another particle of mass <em>M</em> placed (i) at the midpoint of a side and (ii) at the centre of the triangle are respectively
Question 69 :
If the density of a small planet is the same as that of earth, while the radius of the planet is {tex}0.2{/tex} times that of the earth, the gravitational acceleration on the surface of that planet is
Question 70 :
Which of the following statement is not a similarity between electrostatic and gravitational forces.?
Question 71 : The planet is revolving around the sun as shown in elliptical path. The correct option is <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e7615f44389b1556ddf1dfd' height='102' width='159' >
Question 72 :
The time period of a seconds pendulum when taken to height h=R/2 from the surface of the earth will
Question 74 :
{tex}\mathbf {Assertion}{/tex} :The binding energy of a satellite does not depend upon the mass of the satellite.<br>{tex}\mathbf {Reason}{/tex} : Binding energy is the negative value of total energy of satellite.<br>
Question 75 :
Rain drops are falling with velocity $( 2 \hat { i } - 4 \hat { j } )$ m/ s. What should be the velocity of a man so that rain drops hit him with speed 5m/s ?
Question 76 :
A spherical planet far out in space has a mass {tex} M _ { 0 } {/tex} and diameter {tex} D _ { 0 } . {/tex} A particle of mass {tex} m {/tex} falling freely near the surface of this planet will experience an acceleration due to gravity which is equal to
Question 77 :
The escape velocity of a sphere of mass {tex} m {/tex} from earth having mass {tex} M {/tex} and radius {tex} R {/tex} is given by
Question 78 :
If the electrical force between two identical masses with same charge is equivalent to the gravitational force between them, then the charge on each object can be related to the masses as:
Question 79 :
(a) Calculate the speed of the car in km/min during the time
Question 80 :
{tex}\mathbf {Assertion}{/tex} :Earth has an atmosphere but the moon does not.<br>{tex}\mathbf {Reason}{/tex} :Moon is very small in comparison to earth.
Question 81 :
{tex}\mathbf {Assertion}{/tex} : If earth suddenly stops rotating about its axis, then the value of acceleration due to gravity will become same at all the places.<br>{tex}\mathbf {Reason}{/tex} :The value of acceleration due to gravity is independent of rotation of earth.<br>
Question 82 :
If we assume only gravitational attraction between proton (mass <em>M</em>) and electron (mass <em>m</em>) in a hydrogen atom and also assume Bohr’s quantization condition, then the expression for the n<sup>th</sup> orbit energy of the H-atom will be
Question 83 :
A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is {tex} 11 \mathrm { km } \mathrm { s } ^ { - 1 } {/tex}, the escape velocity from the surface of the planet would be
Question 84 :
Two bodies of masses <em>m</em> and <em>M</em> are placed a distance <em>d</em> apart. The gravitational potential at the position where the gravitational field due to them is zero, is
Question 85 :
The mass and radius of a planet are double that of the earth. If the time period of a simple pendulum on the earth is $T$, the time period on the planet is<br/>
Question 86 :
Which of the following statements is correct regarding the universal gravitational constant G ?
Question 87 :
As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would
Question 88 :
A satellite {tex} A {/tex} of mass {tex} m {/tex} is at a distance of {tex} r {/tex} from the centre of the earth. Another satellite {tex} B {/tex} of mass {tex} 2 { m } {/tex} is at a distance of {tex} 2 { r } {/tex} from the earth's centre. Their time periods are in the r
Question 89 :
Assertion: Assertion : Gravitational force is always attractive in nature, while electromagnetic force can be attractive or repulsive.
Reason: Reason : Electromagnetic force dominates terrestrial phenomena.
Question 90 :
A mass <em>m</em> is divided into two parts <em>xm</em> and (1 – <em>x</em>)<em>m</em>. For a given separation, the value of <em>x</em> for which the gravitational attraction between the two pieces becomes maximum is
Question 91 :
The height of the point vertically above the earth's surface, at which acceleration due to gravity becomes {tex} 1 \% {/tex} of its value at the surface is (Radius of the earth {tex} = R ) {/tex}
Question 92 :
{tex}\mathbf {Assertion}{/tex} : When distance between two bodies is doubled and also mass of each body is also doubled, gravitational force between them remains the same.<br>{tex}\mathbf {Reason}{/tex} : According to Newton's law of gravitation, force is directly proportional to mass of bodies and inversely proportional to square of distance between them.
Question 93 : A Ring has mass M, radius R. A point mass m is placed at a distance x on the axial as shown. Find x so that force experienced is maximum <br><img style='object-fit:contain' src='https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5e761588491ec95800699bd6' height='151' width='132' >
Question 94 :
Which of the following statements is correct regarding the gravitational force ?
Question 95 :
A body falls freely under gravity. Its speed is {tex} v {/tex} when it has lost an amount {tex} U {/tex} of the gravitational energy. Then its mass is
Question 96 :
The masses and radii of the earth and moon are {tex} M _ { 1 } , R _ { 1 } {/tex} and {tex} M _ { 2 } , R _ { 2 } {/tex} respectively. Their centres are distance {tex} d {/tex} apart. The minimum velocity with which a particle of mass {tex} m {/tex} should be projected from a point midway between their centres so that it escapes to infinity is<br>
Question 97 :
Assertion: When a soda water bottle falls freely from a height $h$, the gas bubble rises in water from the bottom
Reason: Air is lighter than liquid
Question 98 :
The time period of an earth satellite in circular orbit is independent of
Question 99 :
How much work will be done to take a space craft orbiting at 200 km above the surface of earth to an orbit at 4000 km above the surface of the earth. Assume circular orbit. Mass of spacecraft equal to 2000 kg.
Question 100 :
The escape velocity from the earth is about 11 {tex} k m / {/tex}second. The escape velocity from a planet having twice the radius and the same mean density as the earth, is
Question 101 :
<font>A Geostationary satellite is revolving around the earth. To make it escape from gravitational field of earth, its velocity must be increased -</font></p>
Question 102 :
<font>A pendulum clock which keeps correct time at the surface of the earth is taken into a min then</font></p>
Question 103 :
The length of a second's pendulum at the surface of earth is $1\space m$. The length of second's pendulum at the surface of moon where $g$ is $1/6th$ that at earth's surface is
Question 104 :
<font>The time period of a satellite of Earth is 5 hours. If the separation between the Earth and the satellite is increased to 4 times the previous value, the new time period will become - </font> </p>
Question 105 :
<font>A body is fired from the surface of the earth. It goes to a maximum height R(radius of the earth) from the surface of the earth. Find the initial velocity given.</font></p>
Question 106 :
A simple pendulum is taken to $64 Km$ above the earth's surface. It's time period will :
Question 107 :
<font>Two types of balances, the beam balance and the spring balance are commonly used for measuring weight in shops. If we are on the moon, we can continue to use</font></p>
Question 109 :
<font>Two satellites S and S' revolve around the earth at distances 3R and 6R from the centre of the earth. Their periods of revolution will be in the ratio :</font></p>
Question 110 :
<font>A particle of mass 10 g is kept on the surface of uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle far away from the sphere.</font></p>
Question 111 :
<font>A particle is projected with a velocity 15 km s</font><sup><font>-1</font></sup><font>. Find its velocity in the space far off from the earth.</font></p>
Question 112 :
<font>If the length of a pendulum is made 9 times and mass of the bob is made 4 times, then the value of time period becomes -</font></p>
Question 113 :
<font>A coin placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency </font><font face="Symbol, serif"><font></font></font><font>. The amplitude of oscillation is gradually increased. The coin will leave contact with the platform for the first time -</font></p>
Question 114 :
<font>If earth stands still what will be its effect on man's weight</font></p>
Question 116 :
<font>If the speed of rotation of earth about its axis increases, then the weight of the body at the equator will -</font></p>
Question 118 :
A hanging wire is $185 cm$ long having a bob of $1.25 kg$. It shows a time period of $1.42 s$ on a Planet Newtonia. If the circumference of Newtonia is $51400 km$, find the mass of the planet.<br/>
Question 119 :
<font>Earth is flattened at the poles and bulges at the equator. This is due to the fact that</font></p>
Question 120 :
<font>If the radius of the earth becomes half of its present value (mass remaining the same), the new length of the day would be -</font></p>
Question 122 :
<font>The time period of a satellite of earth is 5 hours. If the separation between the earth and the satellite is increased to 4 times the previous value, the new time period will become -</font></p>
Question 123 :
<font>The mass of moon is 1% of mass of earth. The ratio of gravitational pull of earth on moon and that of moon on earth will be</font></p>
Question 124 :
<font>A satellite is launched into a circular orbit of radius ‘</font><font><i>R</i></font><font>’ around earth while a second satellite is launched into an orbit of radius 1.02 </font><font><i>R</i></font><font>. The percentage difference in the time periods of the two satellites is</font></p>
Question 125 :
<font>5 kg and 10 kg spheres are 1 m apart. Where the gravitation field intensity be zero from 5 kg block.</font></p>
Question 126 :
<font>Where will it be profitable to purchase 1 </font><font><i>kg</i></font><font> sugar (by spring balance)</font></p>
Question 127 :
<font>In some region, the gravitational field is zero. The gravitational potential in this region</font></p>
Question 128 :
<font>Which of the following statements is correct regarding the universal gravitational constant G ?</font></p>
Question 130 :
.</b></font><font>A 2 kg body falls from infinity to the surface of earth. What will be the kinetic energy of the body on reaching the surface of earth ? (Assume escape velocity to be 10</font><sup><font>4</font></sup><font>ms</font><sup><font>-1</font></sup><font>.)</font></p>
Question 132 :
<font>The centripetal force acting on satellite orbiting around the earth and the gravitational force of earth acting on the satellite both equal F. The net force on the satellite is -</font></p>
Question 133 :
<font>Which of the following planets has two moon phobos and demios ?</font></p>
Question 134 :
<font>A body weighs 1 kg by a spring balance at the north pole. What will it weigh at the equator ?</font></p>
Question 135 :
<font>When a body is taken from the equator to the poles, its weight -</font></p>
Question 136 :
<font>Let E</font><sub><font>1</font></sub><font> and E</font><sub><font>2</font></sub><font> denotes gravitational field at distance ‘r</font><sub><font>1</font></sub><font>’ and ‘r</font><sub><font>2</font></sub><font>’ from axis of infinitely long solid cylinder of radius ‘R’. Which of the following must hold true -</font></p>
Question 137 :
<font>Which of the following Kepler’s laws is also known as harmonic law ?</font></p>
Question 138 :
<font>A small satellite is revolving near earth's surface. Its orbital velocity will be nearly -</font></p>
Question 139 :
<font>Find the weight of an object at Neptune which weighs 19.6 N on the earth. Mass of Neptune = 10</font><sup><font>26</font></sup><font> kg, radius R = 2.5 × 10</font><sup><font>4</font></sup><font> km and rotates one around its axis in 16 h.</font></p>
Question 141 :
<font>The tidal wave in the sea are primarily due to gravitational effect of</font></p>
Question 142 :
If $g_E$ and $g_M$ are the accelerations due to gravity on the surface of the earth and the moon respectively and if Millikan's oil drop experiment could be performed on the two surfaces, one will find the ratio<br/><br/>$\displaystyle \frac {electronic\ charge\ on\ the\ moon}{electronic\ charge\ on\ the\ earth}$to be
Question 143 :
<font>The orbit of geostationary satellite is circular, the time period of satellite depends on (i) mass of the satellite (ii) mass of the earth (iii) radius of the orbit (iv) height of the satellite from the surface of the earth</font></p>
Question 144 :
A simple pendulum has a time period of T$_{0}$ on the surface of the earth. On another planet whose density is same that of earth but radius is 4 times then time period of this simple pendulum would be :<br/>
Question 145 :
<font>The earth is an approximate sphere. If the interior contained matter which is not of the same density everywhere, then on the surface of the earth, the acceleration due to gravity</font></p>
Question 146 :
<font>For a satellite moving in an orbit around the earth, the ratio of its potential energy to kinetic energy is </font> </p>
Question 148 : <font>Match the column I with column II.</font></p> <table width="326"> <tr> <td width="22"><p> <br/> </p> </td> <td width="100"><p> <font><b>Column I</b></font></p> </td> <td width="21"><p> <br/> </p> </td> <td width="125"><p> <font><b>Column II</b></font></p> </td> </tr> <tr> <td width="22"><p> <font>(A) </font> </p> </td> <td width="100"><p> <font>Kepler’s law</font></p> </td> <td width="21"><p> <font>(p)</font></p> </td> <td width="125"><p> <img align="bottom" height="22" src="https://storage.googleapis.com/teachmint/question_assets/JEE%20Main/5fc0e9f8e6377b2e815f3bf9" width="53"/> </p> </td> </tr> <tr> <td width="22"><p> <font>(B)</font></p> </td> <td width="100"><p> <font>Kepler’s second law</font></p> </td> <td width="21"><p> <font>(q)</font></p> </td> <td width="125"><p> <font>Inverse square law</font></p> </td> </tr> <tr> <td width="22"><p> <font>(C)</font></p> </td> <td width="100"><p> <font>Kepler’s law</font></p> </td> <td width="21"><p> <font>(r)</font></p> </td> <td width="125"><p> <font>Orbit of planet is elliptical</font></p> </td> </tr> <tr> <td width="22"><p> <font>(D)</font></p> </td> <td width="100"><p> <font>Newton’s law of gravitation</font></p> </td> <td width="21"><p> <font>(s)</font></p> </td> <td width="125"><p> <font>Law of conservation of angular momentum</font></p> </td> </tr> </table>
Question 150 :
<font>Which of the following statements is correct regarding the gravitational force ?</font></p>
