Multiple choice

Due to which of the following reasons, sound cannot be heard on the surface of moon?

a. Due to absence of gravity. b. Due to absence of air on moon. c. Due to uneven terrain on moon.

  1. Only a and b

  2. Only a

  3. Only b and c

  4. Only b

  5. Only c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option. Sound waves need a medium to travel. As there is no air on moon, there is no medium for air waves to travel. Thus, sound cannot be heard on the surface of moon. 

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