Home
Class 12
PHYSICS
Two light sources have intensity of lig...

Two light sources have intensity of light as `I_(0)`, What is the intensity at a point where the two light waves have a phase difference of `pi//3`?

Text Solution

Verified by Experts

Let the intensities be `I_(0)`
The resultant intensity is`I=4I_(0)ccos^(2)(varphi//2)`
Resultant intensity when,`phi=pi//3,isI=4I_(0)cos^(2)(pi//6)`
`I=4I_(0)(sqrt3//2)^(2)=3I_(0)`
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER-07 (SOLVED )

    FULL MARKS|Exercise (PART - IV)(Answer all the questions.)|10 Videos

  • SAMPLE PAPER-07 (SOLVED )

    FULL MARKS|Exercise (PART-II)|9 Videos

  • SAMPLE PAPER-05 ( SOLVED )

    FULL MARKS|Exercise PART - IV|10 Videos

  • SAMPLE PAPER-1 (SOLVED)

    FULL MARKS|Exercise Questions|28 Videos

Similar Questions

Explore conceptually related problems

When the intensity of a light source is increased.

Two sources of intensity I and 4I are used in an interference experiment. Find the intensity at points where the waves from two sources superimpose with a phase difference (i) zero (ii) (pi)/(2) and (iii) pi .

In Young's double slit experiment using monochromatic light of wavelength lamda , the intensity of light at a point on the screen where path difference is lamda is K units. What is the intensity of light at a point where path difference is (lamda)/3 ?

Find the intensity at a point on a screen in Young's double slit experiment where the interfering waves of equal intensity have a path difference of lamda/3

In the young,s double -slit experiment ,the intensity of light at a point on the screen where the path difference is lambda is K, (lambda being the wavelenght of light used). The intersity at a point where the path difference is lambda//4 , will be

Find the intensity at a point on a screen in Young's double slit experiment where the interfering waves of equal intensity have a path difference of lamda/4

What happens if intensity of light is increased, when the frequency is less than threshold value?