| ⇦ | 
| ⇨ |
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
Related Questions: - A parallel beam of light of wavelength λ is incident normally on a narrow slit
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
- An objective moves ,starting from rest through a resistive medium
- Two radioactive materials X₁ and X₂ have decay constants 5λ and λ respectively
- The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A parallel beam of light of wavelength λ is incident normally on a narrow slit
- If 10000 V is applied across an X-ray tube, what will be the ratio of de-Broglie
- An objective moves ,starting from rest through a resistive medium
- Two radioactive materials X₁ and X₂ have decay constants 5λ and λ respectively
- The velocity of a particle at an instant is 10 ms⁻¹ and after 5 s the velocity
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply