Rama plays cricket with his friends every evening. Which energy does he use to play cricket ?

The correct answer is Muscular energy.

Step 1: Understand the activity
Playing cricket involves physical activities such as running, batting, bowling, and fielding. All of these activities require bodily movement produced by contracting and relaxing muscles.

Step 2: Identify the form of energy involved
The energy exerted by the muscles of the body to perform physical work or mechanical tasks is called muscular energy. Therefore, when Rama plays cricket, he uses muscular energy.

Step 3: Analyze the other options
- Light energy: This is energy from light sources (like the Sun or a bulb) that helps us see, not the energy used by our muscles to move.
- Chemical energy: While food provides chemical energy stored in our body, it gets converted into muscular energy to carry out physical work.
- Sound energy: This is energy produced by vibrating objects that we can hear, not used for physical exertion.

Thus, the primary form of energy used directly for physical activities like playing cricket is muscular energy.