Question

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3. The speed of light in glass is 2 x 10 km/s. What is the refractive index of glass?

Ans should be: 1.5​

Answer 1

Answer:

20

Explanation:

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Answer 2

Answer:

Given, Speed of light in glass = 2 x 10 to the power 5

= 2*10 to the power 5*20 to the power 3 = 2*20 to the power 8 m/s

refractive index of glass

(= speed of light in vaccum/ speed of light in glass )

so , 3*10 to the power 8 / 2*10 to the power 8 is

1.5

Explanation:

the answer is 1.5

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