A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is
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An incident ray strikes a plane mirror at an angle of 20 deg with the mirror. The angle between the incident ray and reflected ray is ____.
A spoon which looks bent is an example of which of the following?
What is the direction of torque?
Which of the following physical quantity measures the rate of work done?
What is the value of acceleration due to gravity on the surface of the earth?
A curved mirror where the reflecting surface is curved inwards is called a
The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called
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