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A parallel sided block of glass of refra...

A parallel sided block of glass of refractive index 1.5 which is 36 mm thick rests on the floor of a tank which is filled with water (refractive index = 4/3). The difference between apparent depth of floor at A and B when seen from vertically above is equal to

A

2 mm

B

3 mm

C

4 mm

D

None of these

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The correct Answer is:
B
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AAKASH SERIES-GEOMETRICAL OPTICS-LECTURE SHEET (EXERCISE II LEVEL -II (ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. In the figure shown sin i/sin r is equal to

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

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

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

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

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

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

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

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

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

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

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

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

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

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  15. A microscope is focussed on a point object, and then its objective is ...

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  16. It is found that electromagnetic signals sent inside glass sphere from...

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  17. A light ray is incident on a transparent slab of refractive index mu=s...

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  18. The time required for the light to go from A to B, when a ray of lilgh...

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  19. The apparent depth of water in cylindrical water tank of diameter 2R c...

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  20. A ray of light travels from a medium of refractive index mu to air. It...

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