Modern Physics 7 Question 68

16. To double the covering range of a TV transmission tower, its height should be multiplied by

(Main 2019, 12 Jan II)

(a) 2

(b) 4

(c) 2

(d) 12

Show Answer

Solution:

  1. Range of TV transmitting tower d=2hR

where, h is the height of the transmission tower. when range is doubled,

∴2d=22hR=2(4h)R

So, height must be multiplied with 4.

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