State whether the given statement is true or false:

Sound needs a medium, but light does not need a medium for its propagation. 

The given statement is true.

Sound is a mechanical wave. Thus sound needs a medium to travel. Sound is produced by the to and fro motion or the vibrations produced in an object, these vibrations propagate through the medium to finally reach the receiver.

Light is an electromagnetic wave. Light does not need a medium to travel. Electromagnetic waves are the only type of non-mechanical waves. They can travel through the vacuum of space. Light from distant stars travels hundreds of thousands of millions of years to reach us.