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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
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- An isolated sphere has a capacitance of 50pF. What would be the radius of the sphere?
- Which of the following measurement is most precise?
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- The escape velocity of a body on an imaginary planet which is thrice the radius
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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