The apparent weight of a person in a lift which is moving down with uniform acceleration is _______.
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What is the SI unit of intensity of sound?
Which of the following is not a vector quantity?
In the equation of motion v = u + at, u represents _________________
If the force applied on the object is in the direction opposite to the direction of motion, the speed of the object __________.
The sliding friction is _______________ than the static friction.
A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :
A galvanometer can be converted to a voltmeter by connecting