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JEE PHYSICS MCQ: COMMUNICATION SYSTEMS

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The T.V. transmission tower in Delhi has a height of

240 \mathrm{~m}

. The distance up to which the broadcast can be received (taking the radius of earth to be

6.4 \times 10^6 \mathrm{~m}

) is:

View answer and explanation

Correct option: C

55 \mathrm{~km}

Option C (55 km) is correct because the distance up to which the broadcast can be received is given by

d = \sqrt{2Rh}

, where R is the radius of the Earth and h is the height of the tower.

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