| ⇦ | 
| ⇨ |
A plane electromagnetic wave of frequency 20 MHz travels through a space along x-direction. If the electric field vector at a certain point in space is 6 Vm⁻¹, then what is the magnetic field vector at that point?
Options
(a) 2×10⁻⁸ T
(b) (1/2) x 10⁻⁸ T
(c) 2 T
(d) (1/2) T
Correct Answer:
2×10⁻⁸ T
Explanation:
The magnetic field, B = E / c, where c = 3 × 10⁸ ms⁻¹
B = 6 / 3 × 10⁸ = 2 × 10⁻⁸ T
Related Questions:
- A juggler maintains four balls in motion,making each of them to rise
- One solid sphere A and another hollow sphere B are of same mass and same outer radii.
- A metal conductor of length 1m rotates vertically about one of its ends at angular
- A satellite S is moving in an elliptical orbit around the earth. The mass
- A body, which emits radiations of all possible wavelengths, is known as
Topics: Electromagnetic Waves
(28)
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