Question

What do you mean by degradation of energy? Explain it by taking two examples of your daily life.

Answer 1

The gradual decrease of useful energy due to friction etc. is called the degradation of energy.

Examples:

1. When we cook food over fire, the major part of heat energy from the fuel is radiated out in the atmosphere. This radiated energy is of no use to us.
2. When electrical appliances are run by electricity, the major part of electrical energy is wasted in the form of heat energy.