Question

5. An astronaut cannot hear his companion on the surface of the moon
because :
(i) frequencies produced are above the audio frequencies
there is no medium for sound propagation
(ii)temperature is too low during night and high during day
(III)

there are too many craters on the surface of the moon
iv) there is no medium for sound propagation ​

Answer 1

Answer:

iv) There is no medium for sound propagation.

Explanation:

An astronaut cannot hear his companion on the surface of the moon

because there is no medium for sound propagation in space and sound needs a medium to travel.