Self Studies
Self Studies
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Self Studies

Motion in a Pla...

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  • Question 1
    4 / -1

    The figure shows a system consisting of (i) a ring of outer radius 3R rolling clockwise without slipping on a horizontal surface with angular speed ω and (ii) an inner disc of radius 2R rotating anti-clockwise with angular speed ω/2. The ring and disc are separated by frictionless ball bearings. The system is in the x-z plane. The point P on the inner disc is at a distance R from the origin, where OP makes an angle of 30o with the horizontal. Then with respect to the horizontal surface,

  • Question 2
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    A body is whirled in a horizontal circle of radius 20 cm. It has angular velocity of 10 rad/s. What is its linear velocity at any point on circular path?

  • Question 3
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    In Young\'s double slit experiment, one of the slit is wider than other, so that amplitude of the light from one slit is double of that from other slit. If Im be the maximum intensity, the resultant intensity I when they interfere at phase difference ϕ is given by

  • Question 4
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    An object is moving in a circle of radius 100 m with a constant speed of 3.14 m/s. What is its average speed for one complete revolution?

  • Question 5
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    A body of mass 100 g is rotating in a circular path of radius r with constant velocity. The work done in one complete revolution is

  • Question 6
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    A particle comes round a circle of radius 1 m once. The time taken by it is 10 sec. The average velocity of motion is

  • Question 7
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    A radar has a power of 1 kW and is operating at a frequency of 10 GHz. It is located on a mountain top of height 500 m. The maximum distance upto which it can detect object located on the surface of the earth
    (Radius of earth = 6.4 × 106 m ) is

  • Question 8
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    A body can throw a stone up to a maximum height of 10 m. The maximum horizontal distance that the boy can throw the same stone up to will be

  • Question 9
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    Two cars of masses m1 and m2 are moving in circles of radii r1 and r2 respectively. Their speeds are such that they make complete circles in the same time t. The ratio of their centripetal acceleration is

  • Question 10
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    If the radius of curvature of the path of two particles of same masses are in the ratio 1: 2, then in order to have constant centripetal force, their velocity, should be in the ratio of

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