| ⇦ | 
| ⇨ |
The speed of electromagnetic waves in vaccum is equal to
Options
(a) μ₀ε₀
(b) √(μ₀ε₀)
(c) 1/√(μ₀ε₀)
(d) 1/(μ₀ε₀)
Correct Answer:
1/√(μ₀ε₀)
Explanation:
According to Maxwelll, it is found that the electromagnetic waves travel in free space (or vacuum) with a speed is given by
c = 1 / √(μ₀ε₀) = 3 × 10⁸ ms⁻¹
Where, μ₀ and ε₀ are absolute permeability and permittivity of the free space, respectively.
where, μ₀ = 4π × 10⁻⁷ Wb A⁻¹m⁻¹
ε₀ = 8.85 × 10⁻¹² C² N⁻¹m⁻²
Related Questions: - Which two of the following five physical parameters have the same dimensions?
- The product of pressure and volume hve thesame units as the product of
- In an interference experiment, third bright fringe is obtained at a point
- If light emitted from sodium bulb is passed through sodium vapour,
- A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when
Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which two of the following five physical parameters have the same dimensions?
- The product of pressure and volume hve thesame units as the product of
- In an interference experiment, third bright fringe is obtained at a point
- If light emitted from sodium bulb is passed through sodium vapour,
- A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when
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