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

A bird in air looks at a fish below it inside in a transparent liquid in a tank. If the distance of the fish as estimated by the bird is h1 and that of the bird as estimated by the fish is h2, then the refractive index of the liquid is

A
h2h1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
h1h2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
h1+h2h1h2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
h1h2h1+h2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A h2h1

For fish, as an observer is in denser medium, the bird will appear at a farther distance.
Thus, apparent height,
h2=y+μx ..........(i)
However, for the bird, as an observer is in rarer medium, the fish will appear to it at a reduced distance.
Thus, apparent depth,
h1=x+yμ
h1=μx+yμ
h1=h2μ [from (i)]
μ=h2h1
Why this question?
It intends to challenge your visualization skill, when the observer is in denser and rarer medium.

flag
Suggest Corrections
thumbs-up
15
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon