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The refractive index of water and glycerine are 1.33 and 1.47 respectively. What is the critical angle for a light ray going from the latter to the former?

a)

b)

c)

d)

None of these


Question ID - 152341 | Toppr Answer

The refractive index of water and glycerine are 1.33 and 1.47 respectively. What is the critical angle for a light ray going from the latter to the former?

a)

b)

c)

d)

None of these

1 Answer - 5876 Votes

3537

Answer Key : (b) -

(b)

When a ray of light passes from glycerine (denser, ) to water (rarer, ) the angle of refraction  is greater than angle of incidence ( ), then from Snell’s law

When , corresponding angle of incidence is known as critical angel,



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