Question

Which of these is a good reflector of sound

• A. An aluminium door
• B. Curtain
• C. Thermocol

Answer 1

The correct option is A

An aluminium door

1. Good reflectors of sound are those which reflect most of the sound waves falling on the surface.
2. Metals are generally good reflectors of sound.
3. Curtain and thermocol are clothes and porous materials and thus are bad reflectors of sound.
4. As aluminum is a metal hence, option (a) aluminum is correct.