Question

Which of the following will stop all light from passing through it?

• A. A, B and C
• B. B, C and D
• C. A, C and D
• D. A, B and D

Answer 1

The correct option is A

A, B and C

The correct option is A: A, B and C

Explanation:

1. Objects like pencils, shoes and cardboard are opaque.
2. When light falls on an opaque object, the light can't pass through it.
3. The piece of a thin cloth is not totally opaque. It will allow some light to pass

Hence, option A is correct.