Question 1 :
The phenomenon in which light that strikes a surface is thrown back into the same medium is called -
Question 2 :
A man $180\ cm$ high stands in front of a plane mirror. His eyes are at a height of $170\ cm$ from the floor. Then the minimum length of the plane mirror for him to see his full length image is
Question 3 : If the ionization energy of hydrogen is 13.6 eV, then the ionization energy for${ He }^{ + }$ ion will be <div><br/></div><div><h1 class="sg-text sg-text--large sg-text--regular"><br/></h1></div>
Question 4 : Select the odd one out with respect to the type of reflection of incident light - <div>wood, steel, silver, mirror </div>
Question 5 :
The nature of light which is verified by the interference event is<br>
Question 7 :
Riya and Priya were sitting around a round table. They noticed that they could see their own and each other's image onto the table top. Then table top is made of
Question 9 : <div><span>The normal distance of each point of image behind the mirror is ________ the normal distance of the corresponding object point in front of the mirror. </span><span>Fill in the blank.</span><br/></div>
Question 12 :
Which group of scientists played a significant role in the development of quantum theory?
Question 13 :
The phenomenon that leads to the bouncing back of light rays is called-
Question 16 :
W<SPAN class=wysiwyg-font-size-medium><SPAN>hat is the phenomenon of light coming back after hitting a smooth plane surface called?</SPAN></SPAN>
Question 18 :
A boy with a 10 cm long stick is standing 2 m away from a plane mirror. How long is the image of the stick?
Question 19 :
<span>Moon does not emit light yet it is visible. Choose the most appropriate reason behind it :</span>
Question 21 :
<span>When all the parallel rays reflected from a plane surface are parallel, the reflection is known as:<br/></span>
Question 23 :
Why we are not able to see our image on a cardboard even though it reflects light?
Question 24 :
<span>Type of reflection in which images are formed and reflection occurs from a smooth surface like that of mirror is known as:</span>
Question 26 :
Identify on which of the following, specular reflection would most likely to occur. <br/>
Question 27 :
The bouncing of a beam of light from a polished surface in some other direction is called -
Question 28 :
Which of the following describes the image formed by a plane mirror?
Question 30 : <div><span>(A) : Newton's corpuscular theory of light could not explain refraction of light.</span><br/></div>(B) : Huygen's wave theory fails to explain polarization property of light.<br/>
Question 31 : <div><span>The ray which bounces off the surface of the mirror when the incident ray strikes the mirror is known as ________.  </span><span>The point at which incident ray meets the mirror is called the _________.</span><br/></div>
Question 32 :
The light ray which comes out from the surface after reflection is called:
Question 33 :
<span>Electron microscope, the biggest innovation in microscopy was built on principle of</span>
Question 39 :
Which of the following can actually affect the visibility of an object?
Question 41 :
The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as ___________.
Question 43 :
<span>A moving particle is associated with a wave packet or group of waves. The group velocity is equal to</span>
Question 45 :
Photoelectric Effect and Raman Effect can be explained on the basis of:
Question 48 :
A ray of light which bounces off the surface of mirror is called :
Question 51 :
A particle is projected above a plane mirror. Taking up as positive and down as negative. Mark the correct <span>options : </span>
Question 52 :
A point source of light is placed in front of a plane mirror, then :
Question 54 :
A candle can not be seen through a bent pipe. This shows that
Question 56 :
Which of the following statement is true for laws of reflection?
Question 57 :
If the angle of incidence is $80^{\circ}$, what will be the angle of reflection with respect to the normal drawn perpendicular at <span>the point of reflection?</span>
Question 58 :
A pencil of light rays falls on a plane mirror and form a real image, so the incident rays are:
Question 59 :
Change in the direction of light when it falls on an object is called :
Question 61 :
A boy of height $1.5m$ with his eye level at $1.4m$ stands before a plane mirror of length $0.75m$ fixed on the wall. The height of the lower edge of the mirror above the floor is $0.8m$. Then
Question 62 :
A monkey is holding onto one end of a light rope which passes over a frictionless pulley and at the other end there is a plane mirror which has a mass equal to the mass of the monkey. At equilibrium the monkey is able to see her image in the mirror. Consider three situations:<br>I. The monkey climbs up the rope.<br>II. The monkey tries to push the rope down.<br>III. The monkey lets go of the rope.<br>Under which of the above conditions does the monkey continue to see her image?<br><br><br><br>
Question 64 :
A plane mirror is placed along the x-axis facing negative y-axis. The mirror is fixed. A point object is moving with $3\hat{i} \, + \, 4\hat{j}$ in front of the plane mirror. The relative velocity of image with respect to its object is
Question 69 :
If an object moves towards a plane mirror with speed '$v$' then:<br/>
Question 71 : <div>According to the principle of complementarity, phenomena can have contradictory properties. These properties cannot be explained simultaneously. Identify phenomenon that are examples of complementarity.</div>
Question 75 :
When the kinetic energy of an electron is increased the wavelength of the associated wave will:
Question 80 :
A man is 180 cm tall and his eyes are 10 cm below the top of his head. In order to see his entire height right from toe to head, he uses a plane mirror kept at a distance of 1 m from him. The minimum length of the plane mirror required is
Question 81 :
The wave nature of matter is not observed in daily life because their wavelength is<br/>
Question 82 :
When a ray of light strikes a plane mirror along the normal, the angle of incidence is -
Question 83 :
Which of the following phenomenon has two angles that are equal to each other?
Question 84 : A light ray is incident normally on a plane mirror.<div>(a) What is the angle of incidence?</div><div>(b) What is the path of reflected ray?</div>
Question 85 :
Which one of the following is a living luminous object ?
Question 87 :
The incident ray, the reflected ray and the .......... all lie on the ....... plane.
Question 88 :
The reflection taking place from the walls of a building is called:
Question 89 :
What is the angle of incidence if a ray is reflected by a plane mirror back along its original path?
Question 91 :
How is the angle of incidence related to the angle of reflection ?
Question 92 :
A man of height 170 cm wants to see his complete image in the mirror (while standing) His eyes is at a height of 160 cm from the ground
Question 94 :
<span>What happens when you throw a ray of light on the mirror along the normal?</span>
Question 95 :
Which of the following phenomenon works on the particle nature of light?
Question 96 :
If we want to see our full image then the minim um size of the plane mirror:
Question 97 :
<span> An electron, proton and a car all have same wavelength. The one possessing highest velocity is </span>
Question 98 :
An incident ray makes an angle of ${ 90 }^{ \circ  }$with the mirror surface. The angle of reflection for this ray is:
Question 100 :
A particle of mass $1mg$ has the same wavelength as the electron moving with a velocity of $3 \times 10^6 ms^{-1}$. The velocity of the particle is (mass of electron =$9.1 \times 10^{-31}$ kg).
Question 101 :
The object is kept at $0.25 m$ from the plane mirror. The distance between object and image is:
Question 102 :
A man $2m$ tall, whose eye level is $1.84m$ above the ground, looks at his image in a vertical mirror. What is the minimum vertical length of the mirror if the man to be able to see whole of himself?
Question 103 :
A man is standing exactly at midway between a wall and a mirror and he want to sce the full height o o the wall (behind him ) in a plane mirror (in front of him). If the height of wall is H, then the minimun length of mirror should be
Question 104 :
In displacement method, convex lens forms a real image of an object for its two different positions. If height of the images in two cases be $24 cm$ and $6 cm$, then the height of the object is
Question 105 :
Take a plane mirror and place it on a sheet of paper. Take a laser, point the light towards the mirror and try changing the angle of incident light and observe the reflected light.<br>What do you see?
Question 106 :
Suppose you are in a dark room with a small window through which a faint light is getting in. Which of the following statements is true?
Question 108 :
A mirror is placed in X -Y plane and moving with velocity 4 m/s along its plane. An object is placed at rest in front of the mirror.<span>The velocity of image will be<br><br></span>
