Question

$\huge{Hey \ Dear \ Brainly \ Users}$
Todays physics question

Refractive index of glass is 2.0 and that of water is 1.0 if the speed of light in water is 2.5×
${10}^{8}$
m/s what is the speed of light in a glass. 

Please don't spam it 

It's my exam yaar 

so please try to understand 

Please don't spammer 

Answer for 4 Mark's 

Try to give your best ✔

Answer 1

We know,

Refractive index of a medium = speed of light in air/speed of light in the medium

Refractive index = c/v

We have been given,

c = 2.5*10^8*1

Refractive index of medium = 2.0

Putting in the required values,

2.0*V = 2.5*10^8

V = 1.25*10^8

So speed of light in glass = 1.25*10^8

In these types of questions always remember to use formula relatively and step by step so to get a proper picture of the question.

In the above question, you can clearly observe that we only need a small formula to tackle the problem but interpretation of the question was extremely important.

Answer 2

I have written it by myself please mark it as the brainllist if it will help you please say thanks for this answer too. . . . . . . .