KEAM 2019 Physics and Chemistry Paper

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Question : 38 of 120

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A TV transmitting antenna is 81 m tall. It has a half-power beam width of 10 degrees. If the receiving antenna is at the ground level, the service area covered by the transmitter is determined by

The Half-power beam width, the height of the transmitter and the radius of the earth
The height of the transmitter and the radius of the earth
The half-power beam width and the radius of the earth
The height of the transmitter and the half-power beam width
The height of the transmitter

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