Television signals broadcast from the moon ca | vedclass

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(C) Television signals are radio waves that propagate in a straight line (line-of-sight propagation). They cannot pass through the Earth's surface. Wh

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$TV$ signals travel straight and cannot follow the curvature of the earth

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(C) Television signals are radio waves that propagate in a straight line (line-of-sight propagation). They cannot pass through the Earth's surface. When waves travel in a straight line from a terrestrial transmitter,they are blocked by the curvature of the Earth beyond a certain distance. However,when signals are broadcast from the moon,they approach the Earth from a high altitude,allowing them to cover a much larger area without being obstructed by the Earth's curvature. This is why high-altitude towers are used for terrestrial broadcasting to extend the range of signal reception.

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

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