Question

When light falls on matter, it can produce

• A. mechanical effect only
• B. chemical effect only
• C. heating effect only
• D. all of the above

Answer 1

The correct option is D

all of the above

Explanation

When light falls on the matter, it can produce all of the stated effects:

1. Mechanical effect- The electrons gain kinetic energy.
2. chemical effect- A current is created
3. Heating energy- The metal is heated.

Hence, option (D) is the correct answer.