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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 resistance of 20 ohm is connected to a source of an alternating potential V
- A satellite S is moving in an elliptical orbit around the earth. The mass
- Three masses are placed on the x-axis : 300 g at origin, 500 g at x = 40 cm
- A capacitor having a capacity of 2 μF is charged to 200V and then the plates
- An ideal heat engine works between temperature T₁=500 K and T₂=375 K.
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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