A thin hollow prism of refracting angle 3°, filled with water gives a deviation of 1°. The refractive index of water is

Question

A thin hollow prism of refracting angle 3°, filled with water gives a deviation of 1°. The refractive index of water is

A thin hollow prism of refracting angle 3°, filled with water gives a deviation of 1°. The refractive index of water is
A. 1.59
B. 1.33
C. 1.46
D. 1.51

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - B
Angle of deviation of the light ray produced by prism is,
`delta=A(mu-1)`
where, `delta` = angle of deviation
A = angle of prims and
μ = refractive index of the prism
Given , A = 3°, `delta` =1° and μ=?
Substituting the given values in Eq. (i), we get
`f^(@)=3^(@)(mu-1)!mu=4/3=1.33`
Hence, the refractive index of the prism is 1.33.