| ⇦ | 
| ⇨ |
The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is equal to:
Options
(a) The speed of light in vacuum
(b) reciprocal of speed of light in vacuum
(c) the ratio of magnetic permeability to the electric susceptibility of vacuum
(d) unity
Correct Answer:
reciprocal of speed of light in vacuum
Explanation:
The average energy stored in the electric field Uᴇ = (1/2) ε₀E²
The average energy stroed in the magnetic field Uв = (1/2) . (B² /μ₀),
According to conservation of energy Ue = Ub
ε₀μ₀ = B² / E²
B / E = √(ε₀μ₀) = 1/C
Related Questions: - A particle covers half of its total distance with speed v1 and the rest half distance
- A cricket ball of mass 250 g collides with a bat with velocity 10 m/s
- When a wire of uniform cross-section a, length l and resistance R
- The pressure at the bottom of a tank containing a liquid does not depend on
- A solid sphere, a hollow sphere and a ring are released from top of an inclined
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle covers half of its total distance with speed v1 and the rest half distance
- A cricket ball of mass 250 g collides with a bat with velocity 10 m/s
- When a wire of uniform cross-section a, length l and resistance R
- The pressure at the bottom of a tank containing a liquid does not depend on
- A solid sphere, a hollow sphere and a ring are released from top of an inclined
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