A rectangular glass prism of thickness d and absolute refractive index n is placed on a point object which is viewed vertically downward from above the prism. Which of the following expressions correctly defines the apparent upward displacement of the object?

a

\(\frac{d}{n}\)

b

dn

c

\(\frac{d}{n - 2}\)

d

\(\frac{d(n - 1)}{n}\)

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Correct Option
a

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Discussions (5)

Emmex14
3 years ago

Absolutely wrong.

Apparent displacement is given by; d(n-1)/n
correct option is D

Auguocy
3 years ago

The correct option is D
its the apparent displacement, which means real depth - apparent depth

Egieb_z
4 years ago

Wrong apparent displacement not depth answer is D

Finesse11
6 months ago

I don't really understand the explanation given

Finesse11
6 months ago

toor I thought as much
answer should be d

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