Question

Science fiction films often show battles between spaceships. Four friends were arguing what would someone in space hear if an enemy spaceship exploded?
Rekha said, 'they would hear a big explosion.'
Renu saud,'they will not hear anything as there is no medium for sound to travel, but they can see the explosion.'
Ramesh said, 'yes, they will not hear anything and they will not be able to see the explosion.'
Raghav said,'the explosion produces sound of frequency above 20,000 Hz hence we cannot hear it.'
Who is correct?

• A. Rekha
• B. Renu
• C. Ramesh
• D. Raghav

Answer 1

The correct option is B Renu

Answer is B.

Sound needs something to travel through to get from one place to another. In the space, since there is no air, sound cannot travel above the surface. So, there are no sounds in the space.
The space has no air because its gravity is too weak to hold an atmosphere. Hence, if an enemy spaceship exploded 'they will not hear anything as there is no medium for sound to travel, but they can see the explosion because light can travel through space as light needs no medium to travel.
Renu is correct.