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ACB is right-angled prism with other ang...

ACB is right-angled prism with other angles as `60^(@)` and `30^(@)` . Refractive index of the prism is 1.5. AB has thin layer of liquid on it as shown. Light falls normally on the face Ac. For total internal reflection, maximum refractive index of the liquid is

A

1.5

B

1.4

C

1.3

D

1.2

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. A prism of glass (mu=1.5) is dipped in to water as shown in the figure...

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  3. ACB is right-angled prism with other angles as 60^(@) and 30^(@) . Re...

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  4. An isosceles prism has one of the refracting surfaces silvered. A ray ...

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  5. Two prisms A and B are in contact with each other have angular dispers...

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  6. Two prisms A and B have dispersive powers of 0.012 and 0.018 respectiv...

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  7. In the figure shown sin i/sin r is equal to

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  8. A convergent beam is incident on two slabs placed in contact as shown ...

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  9. A parallel sided block of glass of refractive index 1.5 which is 36 mm...

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  10. The apparent depth of an object O from AB is

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  11. A point source S is placed at the bottom of different layers as shown ...

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  12. A person looking through a telescope focuses lens at a point on the ed...

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  13. x-y plane separates two media, zge0 contains a medium of refractive i...

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  14. A body weighs w Newton on the surface of the earth. Its weight at a he...

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  15. The graph between sine of angle of refraction (sin r) in medium 2 and ...

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  16. A cubic container is filled with a liquid whose refractive index incre...

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  17. Four similar prisms of angle of prism are arranged. Which of the follo...

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  18. A light ray is incident upon a prism in minimum deviation position and...

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  19. A ray of light strikes a plane mirror at an angle of incidence 45^@ as...

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  20. The xz plane separates two media A and B with refractive indices mu(1)...

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