1.

A tower of height 100 m on earth can send signal on earth to particular range. If range is to be increased to 3 times find the new height of tower required.(1) 300(2) 500(3) 900(4) 700

Answer»

Correct option is (3) 900

\(d = \sqrt{2Rh}\)

\(d^2 \propto h\)

New height is 900 m



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