Question

03. The refractive inded of water is 4/3 and
glass
is 3/2.
The aboactive index of glass with respect to water is [ ]
A)8/9
B)9/8
c)2
D)1/2​

Answer 1

Answer:

Refractive index of water n

w

=

3

4

Refractive index of gas n

g

=

2

3

Refractive index of glass w.r.t. water n

gw

=

n

w

n

g

⟹ n

gw

=

4/3

3/2

=

8

9

Explanation:

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Answer 2

Explanation:

Answer:

Option (A) 8/9 is the required answer.

Explanation:

Given:-

Refractive index of water to air = 4/3

Refractive index of glass to air = 3/2

To Calculate:-

Refractive index of glass with respect to water

Solution:-

Here , we have to calculate the relative refractive index between glass & water .

• Refractive index of glass with respect to Water = Refractive index of Water with respect to air/Refractive index of glass with respect to air

Substitute the value we get

→ Refractive Index of Glass with Water =4/3/3/2

→ Refractive Index of Glass with Water = 4×2/3×3

→ Refractive Index of Glass with Water = 8/9

Hence, the refractive index of glass with respect to water is 8/9.

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