wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

An electromagnetic wave of intensity 50Wm2 enters in a medium of refractive index 'n' without any loss. The ratio of the magnitudes of electric fields, and the ratio of the magnitudes of magnetic fields of the wave before and after entering into the medium are respectively, given by :

A
(1n,1n)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
(n,1n)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
(n,n)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(1n,n)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is D (n,1n)
C=1μ00
V=1k0μ0 [For transparent medium μrμ0]
CV=k=n
120E20C= intensity =120kE2v
E20C=kE2v
E20E2=kVC=n2nE0E=n
similarly
B20C2μ0=B2v2μ0B0B=1n

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Fringe Width
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon