Television signals on earth cannot be received at distances greater than 100 km from the transmission station- The reason behind this is thatA- The surface of earth is curved like a sphereB- The receiver antenna is unable to detect the signal at a distance greater than 100 kmC- The TV programme consists of both audio and video signalsD- The TV signals are less powerful than radio signals

The correct option is A The surface of earth is curved like a sphere Curved nature of Earth ...

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Emission and Absorption Spectra

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Question

Television signals on earth cannot be received at distances greater than 100 km from the transmission station. The reason behind this is that

The receiver antenna is unable to detect the signal at a distance greater than 100km

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The TV programme consists of both audio and video signals

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The TV signals are less powerful than radio signals

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The surface of earth is curved like a sphere

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100 k m

140 m

40 m

= 6.4 \times 10^{6} m)

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