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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
Related Questions: - Resistances n, each r Ω, when connected in parallel give an equivalent resistance
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- The period of oscillation of a mass M suspended from a spring of negligible mass is T
- The minimum wavelength of X-rays emitted by X-ray tube is 0.4125Å
- Four point masses, each of value m, are placed at the corners of a square ABCD
- A solid cylinder of mass M and radius R rolls without slipping down and inclined plane
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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