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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
- The electric field in a certain region is acting radially outward and is given by E=Ar.
- A p-n-p transistor is used in common emitter mode in an amplifier circuit.
- The vector sum of two forces is perpendicular to their vector difference. In that case,
- Three objects coloured black, gray and white can withstand hostile conditions upto 2800⁰C.
- The work done in which of the following processes is zero?
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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