The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the

Question

The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the

The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the refractive index of the water is
A. 1.3
B. 1.36
C. 1.42
D. 1.46

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

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

Salim Ahmed Kawsar

Correct Answer - B
(b) As optical paths are equal, hence
`n_(g)x_(g)=n_(w)x_(w)`
`n_(w)=n_(g)x_(g)/x_(w)`
Refractive index of the water, `n_(w)=1.53xx4.0/4.5=1.36`

7 views Answered 2023-02-05 15:29