| ⇦ |
| ⇨ |
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: - Two parallel metal plates having charges +Q and -Q face each other at a certain
- An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
- The radius of orbit of a planet is two times that of the earth. The time period
- A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two parallel metal plates having charges +Q and -Q face each other at a certain
- An electric bulb has a rated power of 50W at 100 V. if it used on an a.c. source
- The radius of orbit of a planet is two times that of the earth. The time period
- A flywheel rotating about a fixed axis has a kinetic energy of 360 J when
- A Zenor diode has a contact potential of 1 V in the absence of biasing. It undergoes
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