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 is a right angled prism with other angles as  and . Refractive index of prism is 1.5.  has a thin layer of liquid. Light falls normally on the face . For total internal reflection, maximum refractive index of liquid is

a)

1.4

b)

1.3

c)

1.2

d)

1.6


Question ID - 152878 | Toppr Answer

 is a right angled prism with other angles as  and . Refractive index of prism is 1.5.  has a thin layer of liquid. Light falls normally on the face . For total internal reflection, maximum refractive index of liquid is

a)

1.4

b)

1.3

c)

1.2

d)

1.6

1 Answer - 5876 Votes

3537

Answer Key : (b) -

(b)

For  at

From geometry of figure



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