1. If during circular motion, the tangential velocity of a body becomes double then the centripetal force
becomes:

2. Under what condition an object will have zero displacement but non zero distance?

3. Which one of the following properties is not exhibited by the longitudinal waves?

4. The speed of sound in air is 332m/s. the speed of sound at 22oC will be:

5. Astronomers calculate the speed of distant stars and galaxies using which of the following
phenomena?

6. In a ripple tank, 40 waves pass through a certain point in 1 second. If the wavelength of the
wave is 5 cm, then the speed of the wave is:

7. In which process the entire heat supply to the gas is converted to the internal energy of
the gas?

8. The internal energy of a system during an isothermal process:

9. If the potential at a point which is 1m from a charge is 1 volt, them the potential at
a pont which is 2m from the same charge will be:

10. The values of electric intensity will due to the presence of a dielectric medium: