Q. 23

<span lang="EN-US

Answer :

(a) Angular width of fringe in double-slit experiment is given by


Where,


D= spacing between the slits


Given, wavelength of light A= 600 nm


Angular width of fringe,





(b) The frequency and wavelength of reflected wave will not change.


The refracted wave will have same frequency, only wavelength will change.


The velocity of light in water is given by,



Where, v= velocity of light


f= frequency of light


= wavelength of light


As light ray is travelling from rarer medium to denser medium, its speed will decrease. Hence wavelength will also decrease.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

A. Distinguish bePhysics - Board Papers

(a) If one of twoPhysics - Board Papers

<span lang="EN-USPhysics - Exemplar

<span lang="EN-USPhysics - Exemplar

Consider the diffPhysics - Exemplar