MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

The Speed of EM Waves

Which of the ...

Question

Which of the following have zero average value in a plane electromagnetic wave?

A

Electric field

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Magnetic field

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

Electric energy

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Magnetic energy

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Magnetic field
We know that
$E_{x} = E_{0} sin (k z - ω t)$
$B_{y} = B_{0} sin (k z - ω t)$
Since both are function of $^{'} s i n^{'}$
Therefore have their average value as zero

Suggest Corrections

thumbs-up

0

Similar questions

Q. Which of the following has/have zero average value in a plane electromagnetic wave?

Q. Choose the correct answer from the alternatives given.

Which of the following has/have zero average value in a plane electromagnetic wave?

Q. Which of the following have zero average value in a plane electromagnetic wave?
(a) Electric field
(b) Magnetic field
(c) Electric energy
(d) Magnetic energy

Q. Which of the following have zero average value in a plane electromagnetic wave?
(i) Magnetic field
(ii) Electric field
(iii) Electric energy
(iv) Magnetic energy.

Q. Consider the following two statements regarding a linearly polarised, plane electromagnetic wave:
(A) The electric field and the magnetic field have equal average values.
(B) The electric energy and the magnetic field have equal average values

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electromagnetic Spectrum

PHYSICS

Watch in App

explore_more_icon

Explore more

The Speed of EM Waves

Standard XIII Physics

Join BYJU'S Learning Program

CrossIcon