CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Young's double slit experiment is performed in a liquid medium. The 10th bright fringe in liquid lies where 6th dark fringe lies in vacuum. The refractive index of the liquid is approximately,

A
1.8
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
1.54
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1.67
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1.2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 1.8
Fringe width, β=λDd

When the apparatus is immersed in a liquid, λ and hence β is reduced, μ (refractive index) times,

(β)10,b=(β)6,d
or, nλDd=(2n1)λD2d
10λ(Dd)=(5.5)λDd
λλ=105.5=μ
μ1.8

Hence, (A) is the correct answer.

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Optical Path
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon