If the speed of a moving particle is tripled, then the ratio of its kinetic energy to its momentum will be

1. doubled
2. tripled
3. quadrupled
4. None of these

Solar cells

1. heat energy to mechanical energy
2. electrical energy to light energy
3. chemical energy to heat energy
4. solar energy to electrical energy

Latent heat of fusion of ice is

1. 4.36 x 10⁵ Jkg^-1
2. 2.36 x 10⁵ Jkg^-1
3. 1.36 x 10⁵ Jkg^-1
4. 3.36 x 10⁵ Jkg^-1

On reversing the direction of current in a wire, the magnetic field produced by it

1. get reversed
2. increases in strength
3. decreases in strength
4. remains unchanged in strength and direction