| ⇦ | 
| ⇨ |
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:
- Energy in a current carrying coil is stored in the form of
- Two point white dots are 1 mm apart on a black paper.
- A solid sphere, disc and solid cylinder all of the same mass and made up of same material
- When 4 A current flows for 2 min in an electroplating experiment,
- If the image formed by a convex mirror of focal length 30 cm is a quarter of the size
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