Question

Television signals broadcast from the moon can be received on the earth while the TV broadcast from Delhi cannot be received at places about $100km$ distant from Delhi. This is because?

Answer 1

Explanation

1. Television signal are radio waves , which moves in a straight line.
2. They cannot pass through earth surface.
3. When the waves move in a straight line they are generally blocked by the curvature of the earth.
4. But when the broadcasting is done from moon, the waves do not have to encounter the curvature of the earth.

Hence, television signals broadcast from the moon can be received.