Physics Questions

Choose the most appropriate answer:Natural radioactivity was discovered by

The spring balance works on the principle of __________

An anemometer measures which of the following ?

The laws which govern the motion of planets are called ___________________.

What is the unit of the physical quantity Entropy?

In nuclear reactor, cadmium rods are used as which of the following?

A wooden block of mass m1 kg accelerates at m/s when a force of 5 N acts on it. Another block of mass m2 kg accelerates at 20 m/s when the same force acts on it. If both the blocks are tied together and the same force acts on their combination, the acceleration will be about

The coil wire in the electric room heater or electric cooking heater is called __________.