A laser beam passing from n medium 1 to medium 2 is refracted as shown. Which…

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Question “A laser beam passing from n medium 1 to medium 2 is refracted as shown. Which…”

Answer

When the medium 1 is changed to medium 2, the light bends from the normal to the surface.

Angle of incidence in medium 2 > angle refraction medium 1.

or,

2 >

1

So, sin

2 > sin

1

So, (sin

2) / ( sin

1) > 1

Snell’s Law

n1* sin

1 = n2* sin

2

So, n1 = n2* (sin

2) / ( sin

1)

So, n1 > n2

Medium 1 has a higher refractive index than medium 2.

So, n1 > n2 <---------answer

Conclusion

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