SATHEE: Optics Question 765

Optics Question 765

Question: Velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^{8} m / s$ and in certain liquid the velocity of light found to be $2.5 \times 10^{8} m / s$ . The refractive index of the liquid with respect to air is

[CPMT 1978; MP PET/PMT 1988]

Options:

A) 0.64

B) 0.80

C) 1.20

D) 1.44

Show Answer

Answer:

Correct Answer: C

Solution:

$μ \propto \frac{1}{v} \Rightarrow \frac{μ_{l}}{μ_{g}} = \frac{v_{g}}{v_{l}} \Rightarrow \frac{μ_{l}}{1.5} = \frac{2 \times 10^{8}}{2.5 \times 10^{8}} \Rightarrow μ_{l} = 1.2$

Optics Question 765

Question: Velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^{8} m / s$ and in certain liquid the velocity of light found to be $2.5 \times 10^{8} m / s$ . The refractive index of the liquid with respect to air is

Options:

Answer:

Solution:

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Optics Question 765

Question: Velocity of light in glass whose refractive index with respect to air is 1.5 is 2×108m/s and in certain liquid the velocity of light found to be 2.5×108m/s . The refractive index of the liquid with respect to air is

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: Velocity of light in glass whose refractive index with respect to air is 1.5 is $2 \times 10^{8} m / s$ and in certain liquid the velocity of light found to be $2.5 \times 10^{8} m / s$ . The refractive index of the liquid with respect to air is