Question

a communication tower of height h transmits the signal upto a range r if the height of the towers is doubled the new range will be​

Answer 1

Answer:

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Answer 2

Explanation:

Correct option is

A

2

r

Range of antenna =r

2hr

, h= height of antenna,

R=radius of earth

if h is doubled i.e., h

′

=2h, then new range r

′

=

2h

′

r

⇒ r

′

=

2.2hr

=

2

2hr

=

2

r