If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but you cannot hear it. Why?
a. Light waves travel very fast and sound waves travel much slower.
b. Sound waves transmit energy while light does not transmit energy.
c. Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.
d. Light is a mechanical wave and needs a medium to travel through while sound is an electromagnetic wave.