Question

A ray of light travelling in medium-1 of
refractive index Mi is incident on medium-2 of
refractive index M2. If i and r are the angle of
incident and angle of refraction while V and v2
are the speed of light in medium-1 and
medium-2 respectively, then
respectively, then match the
columns.
.i=30' r=45​

Answer 1

Answer:

If v1 and V2 is velocity of light in medium 1 and medium 2 respective.

Then n12 , the refractive index of medium 1 with respect to medium 2 is given by :

n12 =

$\frac{v2}{v1} = \: \frac{1}{n21}$

Now, according to Snell's law when light is incident on medium 1 with angle i and refracts to medium 2 with angle r then relation between them is given by:

$\frac{ \sin(i) }{ \sin(r) } = \frac{n2}{n1} = \: \frac{v1}{v2} = \: n21$

Explanation:

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