Question

give reasons:
a. sound is not heard on the surface of the moon.
b. sound is heard louder in the empty room than in a furnished room. ​

Answer 1

Explanation:

A

Sound cannot be heard on the surface of moon because there is no air on the moon to carry the sound waves. ... This is because radio waves can travel even through vacuum though sound waves cannot travel through vacuum.

B

we hear sound more clearly in a furnished room than in an empty room. ... This is due to echo, because in empty room there is continuous reflection of sound waves occur but in furnished room there are many sound absorbing materials therefore echo do not occur.