Question

Which of the following materials is a good reflector of sound?

• A. Metals
• B. Thermocol
• C. Cork

Answer 1

The correct option is A

Metals

The explanation for the correct answer.

1. Metals are very good reflectors of sound because they are hard and smooth with no pores.

The explanation for the incorrect answer :

1. Cork being a porous material traps and absorbs sound and thus is not a good reflector of sound.
2. Thermocol is also porous and soft and is not a good reflector of sound.

Hence the correct option is A.