| ⇦ | 
| ⇨ |
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: - An interference pattern was made by using red light. If the red light
- In a semiconductor
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- The phase difference between two points seperated by 0.8 m in a wave of frequency
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An interference pattern was made by using red light. If the red light
- In a semiconductor
- Two concentric coils each of radius equal to 2π cm are placed at right angles
- The phase difference between two points seperated by 0.8 m in a wave of frequency
- The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
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