Physics, asked by 20182019, 1 year ago

solve it pls by today only​

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Anonymous: ___k off

Answers

Answered by Krais
1

✨Answer:

Option (A)

✨Explanation:

We have,

✔vel = dis / time

And

Also,

✔n = c/v

Where

n = refractive index

c = speed of light

v = vel in given medium

So ,

✔v = c/n

Now,

✔c/n = distance / time

➡3 x 10^8 / 1.8 = 250/ time

➡Time = 1.8 x 250/ 3 x 10^8

➡Time = 150 x 10^-8

➡Time = 1.5 x 10^-6.

Hence,

Answer : option (A)1.5 x 10^ -6


Krais: Pls Mark my ans as brainliest
20182019: ty pls solve another question also which i asked today
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