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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 radioactive substance decays to 1/16th of its initial activity in 40 days.
- The radius of curvature of a convave mirror is 24 cm and the imager is magnified
- The displacement ‘x’ (in meter) of a particle of mass ‘m’ (in kg) moving in one
- Consider a two particle system with particle having masses m₁ and m₂. If the first
- A wire of resistance 4 ohm is stretched to twice its original length.
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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