Question

A beam of light covers a distance of 900 m in air in 3us the time required by this light to cover a distance of 1800 m in water of refractive index 4/3 will be ​

Answer 1

Answer:

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Answer 2

Concept Introduction:

The Refractive index is determined by dividing the velocity of light in a medium by the light speed in a second medium with a higher density.

Solution:

Given, A beam of light covers a distance of $900$ m in the air in $3$us

We have to find distance of $1800$ m in water of refractive index $4/3$

The answer is = $3 /( 4/3 )$ = $2.25$

Final Answer:

The final answer is $2.25$

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