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A TV tower is 120 m high. How much more height is to be added to it its coverage range is to become double? Or, Draw a neat diagram of Amplitude Modulated Wave. Write down the formula of 'Modulation Index'. |
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Answer» Solution :Coverage range, d = `sqrt(2hR),`where h = height of the TV TOWER As R = radius of the earth = constant, d `prop sqrt(h)`, So d becomes DOUBLE when h becomes 4 times. `THEREFORE` New height of the tower = `4 xx 120` = 480 m `therefore` Increases in height = ( 480 -120) = 360 m |
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