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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
- Electrical force is acting between two charges kept in vacuum. A copper plate
- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- To demonstrate the phenomenon of interference, we require two sources which emit
- A current of 2A flows through a 2Ω resistor when connected across a battery
- A focal length of a lens is 10 cm. What is power of a lens in dioptre?
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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