0

Guest

Courses New

what will happen to the fringe width in fresnel’s biprism if it’s immersed in water and why?/

what will happen to the fringe width in fresnel’s biprism if it’s immersed in water and why?/
               

Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
On immersing the apparatus in a liquid(say water), the wavelength of  light decreases.
That is :-
 λ'=λμ            ..............(1)
As fringe width is calculated by:-
β=λD2d           ........(1)
Put value of λ=λ'μ in eq.(1):-
Now:- β'=λμ*D2d
             =β/μ'
That is fringe width decreases and hence becomes 1μ times of its value in air. 

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