MyQuestionIcon

1

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

Light Spectrum

A plane elect...

Question

A plane electromagnetic wave is incident on a material surface. If the wave delivers momentum $p$ and energy $E$ , then:

A

p = 0

,

E = 0

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

B

p \neq 0

,

E \neq 0

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

C

p \neq 0

,

E = 0

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

D

p = 0

,

E \neq 0

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

Open in App

Solution

The correct option is B $p \neq 0$ , $E \neq 0$
An electromagnetic wave has both energy and momentum.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A plane electromagnetic wave is incident on a material surface. The wave delivers momentum p and energy E.
(a) p = 0, E ≠ 0
(b) p ≠ 0, E = 0
(c) p ≠ 0, E ≠ 0
(d) p = 0, E = 0

Q. A plane electromagnetic wave is incident on a material surface. The wave delivers momentum

p

E .

Q. If energy (E) , force (F) and linear momentum (P) are fundamental quantities, then match the following and give correct answer.

A	B
Physical quantity	Dimensional formula
a) Mass	d) $E^{0} F^{- 1} p^{1}$
b) Length	e) $E^{- 1} F^{0} p^{2}$
c) Time	f) $E^{1} F^{- 1} p^{0}$

Q. A plane electromagnetic wave is incident on a plane surface of area A normally and is perfectly reflected. If energy E strikes the surface in time t then average pressure exerted on the surface is (c = speed of light):

Q. A linearly polarized electromagnetic wave given as

E = E_{0}^i cos (k z - ω t)

is incident normally on a perfectly reflecting infinite wall at z = a. Assuming that the material of the wall is optically inactive, the reflected wave will be given as

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Light spectrum Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon