Question

What is refractive index? How can the refractive index of a medium be expressed if one medium is air and the other is glass. ( Give the formula)​

Answer 1

Answer:

the ratio of the velocity of light in a vacuum to its velocity in a specified medium.

Explanation:

It is to be noted that refractive index of a medium is directly proportional to angle of deviation i.e. if a medium is optically denser then the light will bend more towards the normal.

if μ

1

>μ

2

then r

2

>r1 as for μ

1

light will bend more towards the normal.

Answer 2

Answer:

R.I is taken as refractive index of median 1 with respect to median 2

when you will write in formula, then write the median afterwards of which you have to find R.I ex. R.I of median 1 with respect to median 2 is = 2n1

formula= sini/sinr

2nd formula= speed of light in median 2/speed of light in median 1

Explanation:

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