Physics Questions

If the velocity of a body becomes two times its initial velocity, its kinetic energy becomes n times its initial kinetic energy. What is the value of n?

What is the resistance (in Ω) of an electrical component if a current of 0.4 A passes through it on application of 12 V of potential difference across it?

Which among the following is not an environment friendly mode of producing electricity?

What is the reason for formation of Mirage in desert?

The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called

Kinetic energy is equal to

What is the resistance (in Ω) of an electrical component if a current of 0.2 A passes through it on application of 8 V of potential difference across it?

For what is Mohs scale used?