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Assertions and Reasons, , Directions. In the following questions, a statement, of assertion (A) is followed by a statement of reason, (R)., , Mark the correct choice as :, , (a) If both assertion and reason are true and reason, is the correct explanation of assertion, , (b) If both assertion and reason are true but reason, is not the correct explanation of assertion, , (c) If assertion is true but reason is false, (a) If both assertion and reason are false, , Se IVLAQURLIVICINT (LUTIPELILIUN SECLIUIT) es, , 44 Y, , 29. Assertion. The dimensional formula for Vv, product of resistance and conductance is same as for, dielectric constant., , Reason. Both have dimensions of time constant., , [AIMS 09], , 30. Assertion. If power of an engine depends on, mass, angular speed, torque and angular momentum,, then the formula of power is not derived with the help, of dimensional method., , Reason. In mechanics, if a particular quantity, depends on more than three quantities, then we cannot, derive the formula of the quantity by the dimensional, method. [AIIMS 17], , Scanned with CamScanner
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29. .) Assertion is true but the reason is false., , Resistance « Conductance, , l ;, R» a dimensionless quantity, , >, , Dielectric constant © a dimensionless constant., , 30. ;.) Both assertion and reason are true and, reason is the correct explanation of the assertion., , Scanned with CamScanner
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Assertions and Reasons, Jlowing questions, a statem,, irections. In the fo ent, of amet (A) is followed by a statement of reason, (R). Mark the correct choice as :, tion and reason are true and reason, , (a) If both asser \, is the correct explanation of assertion, , (b) If both assertion and reason are true but reason, is not the correct explanation of assertion, , (c) If assertion is true but reason is false, , (d) If both assertion and reason are false, , 21. Assertion. A body can have acceleration even if, its velocity is zero at that instant of time., , Reason. The body will be momentarily at rest when, it reverses its direction of motion. [AIIMS 13], , 22. Assertion. When a body is dropped or thrown, horizontally from the same height, it would reach the, ground at the same time., , Reason. Horizontal velocity has no effect on the, vertical motion. [AIIMS 12], , 23. Assertion. Displacement of a body may be zero,, when distance travelled by it is not zero., , Reason. The displacement is the longer distance, between initial and final positions. [AIMS 14], , 24. Assertion. The speedometer of an automobile, measures the average speed of the automobile., , Reason. Average velocity is equal to total distance, divided by total time taken. [AIIMS 15], , 25. Assertion. For a given time interval, average, , velocity is single valued while av, many values. erage speed can have, , Reason. Velocity is.a vector i, juan} i, scalar quantity. ane ae. 2 mi, , ', , {, , Scanned with CamScanner
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21, (a) Both the assertion and reason are true an,, , on is the correct explanation of the assertion, 4, , in re thrown up vertically will have Zer0 Velocity at, the highest point but its acceleration will be equal to g., , 22, (2) Both the assertion and reason are true and, the reason is the correct explanation of the assertion,, Horizontal velocity has no effect on the time of fall., , 23. (c) Assertion is true but the reason is false,, Displacement is the shortest distance between the, initial and final positions of the body., , 24, (4) The speedometer measures the instantaneous speed of the automobile., , Also, average velocity = “St ceplacement, otal time, , 25, (0) Average vel ocity = we -_tiacement, ime taken, , =a single value for a given time interval., Both assertion and, , reason are true but the reason is, 4 correct explanati, , on of the assertion., , not, , f, f, , Scanned with CamScanner
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Assertions and Reasons, , Directions. In the following questions, a statement, of assertion (A) is followed by a statement of reason, 04,07] (R). Mark the correct choice as :, , mg is (a) If both assertion and reason are true and reason, ed. If is the correct explanation of assertion, s the (b) If both assertion and reason are true but reason, , is not the correct explanation of assertion, (c) If assertion is true but reason is false, , MS 01} (d) If both assertion and reason are false, ticle, +05, 22. Assertion. Two balls of different masses are, , gular thrown vertically upward with same speed. They will, pass through their point of projection in the downward, direction with the same speed., , MS 98] Reason. The maximum height and downward, velocity attained at the point of projection are, , ? a independent of the mass of the ball. [AIIMS 2010], , 2ed ai, , ration 23. Assertion. In javelin throw, the athlete throws, , the projectile at an angle slightly more than 45°., , Reason. The maximum range does not depend, upon angle of projection. [AIIMS 2010], , 24. Assertion. Generally the path of a projectile, from the earth is parabolic but it is elliptical for, (MS 13] projectiles going to a very great height., , : jand Reason. up to ordinary height the projectile moves, under a uniform gravitational force, but for great, , C if heights, projectile moves under a variable force., [AIMS 1998], , IMS 18 :, 25. Assertion. The projectile has only vertical component of velocity at the highest point of its trajectory., Reason. At the highest point only one component, of velocity is present. [AIMS 11], i+2j. 26. Assertion. In a non-uniform circular motion, the, , ms”) acceleration of the particle is equal to sum of the, tangential acceleration and the centripetal acceleration., , Reason. The two accelerations are perpendicular to, IIMS-17} each other. | AIIMS 13], , Scanned with CamScanner
