CameraIcon

SearchIcon

MyQuestionIcon

6

You visited us 6 times! Enjoying our articles? Unlock Full Access!

The intensiti...

Question

The intensities of two light sources are I and 9I respectively. If the phase difference between the waves emitted by them is $π$ , then the resultant intensity at the point of observation will be

A

3I

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

B

4I

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

C

10I

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

D

82I

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

Open in App

Solution

The correct option is B 4I
$I = I_{1} + I_{2} + 2 \sqrt{I_{1} I_{2}} c o s ϕ = 4 I$

Suggest Corrections

thumbs-up

0

Similar questions

Q. The intensities of two light sources are I and 9I respectively. If the phase difference between the waves emitted by them is

π

, then the resultant intensity at the point of observation will be

Q. Interference fringes are produced on a screen by using two light sources of intensities 'I' and '9I'. The phase difference between the beams is

\frac{π}{2}

π

at point Q on the screen. The difference between the resultant intensities at point P and Q is :

Q. In an interference, the intensity of two interfering waves are I and 4I respectively. They produce intensity at two points A and B with phase angle of

π / 2

π

respectively. Then difference in between them is.

Q. Two coherent sources emit light waves which superimpose at a point and are expressed as

\begin{matrix} E_{1} = E_{0} sin (ω t + π / 4) E_{2} = 2 E_{0} sin (ω t - π / 4) \end{matrix}

E_{1}

E_{2}

are the electric field strengths of the two waves at the given point. If

I

is the intensity of wave expressed by field strength

E_{1}

. The resultant intensity istimes

I

Q. Light waves from two coherent sources having intensities

I

2 I

cross each other at a point with a phase difference of

60^{o}

. What is the resultant intensity at the point?

View More

Join BYJU'S Learning Program

explore_more_icon

Explore more

Standard XI Physics

Join BYJU'S Learning Program

CrossIcon