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In Physics, the range of time scales used is

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According to Einstein’s theory of relativity, energy-mass relation is

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The ratio of the volume of the atom to the volume of the nucleus is of the order

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Calculate the relative errors in measurement of two masses `1.02 g ± 0.01g and 9.89g +- 0.01g

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If the velocity `v` (in `cms^(-1)`) of a particle is given in terms of `t` (in second) by the relation `v= at+b/(t + c)` then the dimensions of `a, b and c`

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Assertion: Unit chosen for measuring physical quantities should not be easily reproducible. Reason: Unit should change with the changing physical conditions like temperature, pressure,

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For a stationary object at `x = 40 m`, the position-time graph

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Find the average velocity, when a particle completes the circle of radius lm in 10

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The kinematic equations of rectilinear motion for constant acceleration for a general situation, where the position coordinate at `t = 0` is non-zero, say `x_0`

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A person is moving with a velocity of `10 ms^(-1)` towards north. A car moving with a velocity of `20 ms^(-1)` towards south crosses the person. The velocity of car relative to the person

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Assertion: In real-life, in a number of situations, the object is treated as a point object. Reason: An object is treated as point object, as far as its size is much smaller than the distance, it moves in a reasonable duration of

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A and B are two inclined vectors. R is their sum. Choose the correct figure for the given

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At the top of the trajectory of a projectile, the directions of its velocity and acceleration

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If a car is executing a uniform circular motion, then its centripetal acceleration

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For two vectors A and B which lie in a plane. Which of the following statement is

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When a car is stationary, there is no net force acting on it. During pick-up, it accelerates. This happens due

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While launching a satellite of mass `10^4 kg,` a force of `5 xx 10^5 N` is applied for `20s`. The velocity attained by the satellite at the end of `20s,`

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The force-time (F -t) graph for linear motion of a body initially at rest is shown in figure. The segments shown are circular, the linear momentum gained in `4 s`

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If a car is moving in uniform circular motion, then what should be the value of velocity of a car, so that car will not moving away from the

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Assertion: A body of mass 1 kg is making 1 rps in a circle of radius 1 m. Centrifugal force acting on it is `4pi^2N`. Reason: Centrifugal force is given by

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