The speed of an electromagnetic wave in a material medium is given by v = 1/√(με),μ being the permeability of the medium and e its permittivity. How does its frequency change?
1 Answers
Talk Doctor Online in Bissoy App
The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is B0 = 510 nT.
Amplitude of magnetic field of an electromagnetic wave in a vacuum, B0 = 510 nT = 510 × 10−9 T Speed of light in a vacuum, c = 3 × 108 m/s Amplitude...
1 Answers 1 views
A mechanical wave propagates in a medium along the X-axis. The particles of the medium
(c) may move on the X-axis (d) may move on the Y-axis. EXPLANATION: Mechanical waves are either transverse or longitudinal. In the transverse wave, the particles will move on Y-axis while in the...
1 Answers 1 views
The speed of light depends (a) on elasticity of the medium only (b) on inertia of the medium only
(d) neither on elasticity nor on inertia. EXPLANATION: The light does not require even a medium. The speed of light in a medium is the intrinsic property of that medium which...
1 Answers 1 views
A light wave can travel (a) in vacuum (b) in vacuum only (c) in a material medium
(a) in vacuum (c) in a material medium EXPLANATION: The light is an electromagnetic wave that can travel in a vacuum as well as in a transparent material medium.
1 Answers 1 views
An electromagnetic wave going through vacuum is described by E = E0sin(kx - ωt); B = B0sin(kx - ωt).
(a) An electromagnetic wave going through vacuum is described by E0k = B0ω.
1 Answers 1 views
A free electron is placed in the path of a plane electromagnetic wave.
(a) along the electric field
1 Answers 1 views
A plane electromagnetic wave is incident on a material surface. The wave delivers momentum p and energy E.
(c) The wave delivers momentum p and energy E, p ≠ 0, E ≠ 0
1 Answers 1 views
An electromagnetic wave going through vacuum is described by E = E0sin(kx - ωt).
(c) An electromagnetic wave going through vacuum is described by k/ω
1 Answers 1 views
Which of the following have zero average value in a plane electromagnetic wave?
(a) electric field (b) magnetic field
1 Answers 1 views
The oscillating magnetic field in a plane electromagnetic wave is given by By = (8 x10^-6)sin[2 x10^11t + 300πx]T
(i) Standard equation of magnetic field is By = B0sin(ωt + kx)T Comparing this equation with the given equation, we get B0 = 8 x 10-6T, ω = 2 x 1011 rad s-1, k...
1 Answers 1 views