Physics Questions

Instrument used for measuring specific gravity is called _____.

Which bulb operates on lowest power?

If an object moves in a purely rotatory motion, then each constituent particle of the body moves in a circle, the centre of which is located on a line is called _______.

A Sonar of a ship sends sounds waves of speed 1600 m/s. These waves are reflected back by the ocean floor in 4 seconds. Find the depth (in m) of the ocean floor.

The spring balance works on the principle of __________

Which  one  of  the following  is  the  value  of one nanometer?

The SI unit of acceleration is __________.

The work done by centripetal force is ______.