In communication with help of antenna if height is doubled then the range

In Communication With Help Of Antenna If Height Is Doubled Physics Question

In communication with help of antenna if height is doubled then the range covered which was initially r would become

Options

(a) √2r
(b) 3r
(c) 4r
(d) 5r

Correct Answer:

√2r

Explanation:

Range r = √(2Rh)

Where R is the radius of the earth and h is the height of the antenna

.·. r’ = √[2R(2h)] = √2 [√(2Rh)] = √2 r

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Topics: Electronic Devices (124)
Subject: Physics (2479)

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