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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
- Water drops fall from a top on the floor 5 m below at regular intervals
- A ship A is moving westwards with a speed of 10 km/h and a ship B 100 km
- A solenoid of length l metre has self inductance L henry. If number of turns
- If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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