0

Guest

Courses New

Ratio of intensities between a point A and that of central fringe is 0.853. Then path difference between two waves at point A will be

 Ratio of intensities between a point A and that of central fringe is 0.853. Then path difference between two waves at point A will be 

Grade:8

1 Answers

Ashish Kumar
askIITians Faculty 32 Points
10 years ago
Intensity at a point = 4 I (cos A/2)^2 , where I is the intensity due a single slit and A is the phase difference between the light coming from the two slits.
given , 4 I (cos A/2)^2 / 4I =.853
cos A/2=.9235, A= 0.786 rad.
path difference = lambda* A /(2* pi) = 0.125 lambda (lambda =wavelength)



169-1954_signature1.GIF

Think You Can Provide A Better Answer ?

Other Related Questions on Wave Optics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More