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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
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Shearing stress causes change in
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- Photoelectric emision occurs only when the incident light has more than a certain minimum
- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.
- If the length of a closed organ pipe is 1.5 m and velocity of sound is 330 m/s,
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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