Question

Sound of explosions taking place on other planets are not heard by a persin on earth.Explain, why?

Answer 1

Hi Shivranu!

Sound is a mechanical wave. It needs a medium to travel through. The space between Earth and other planets is vacuum. There are no molecules to propagate the mechanical vibrations of the explosion, and sound cannot travel through vacuum. Therefore, a person on Earth cannot hear the explosions on other planets.

Cheers!!