Question : According to _____ law, the heat produced by an electric current is directly proportional to the resistance of the conductor, the square of the current and the time it flows.

Option 1: Hooke's

Option 2: Charles's

Option 3: Faraday's

Option 4: Joule's

Question : The characteristic invalid for heat radiation is that it travels

Option 1: in a straight line

Option 2: in all directions

Option 3: with the speed of light

Option 4: heating the medium through which it passes

Question : Heat stored in water vapour is:

Option 1: Specific heat

Option 2: Latent heat

Option 3: Absolute heat

Option 4: Relative heat

Question : When quick lime is added to water

Option 1: Heat is liberated

Option 2: Heat is absorbed

Option 3: Temperature decreases

Option 4: No heat change takes place

Question : The enormous amount of energy released in the explosion of an atomic bomb is due to the

Option 1: Conversion of mass into energy

Option 2: Conversion of chemical energy into heat energy

Option 3: Conversion of mechanical energy into nuclear energy

Option 4: Conversion of neutrons into protons