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A ray of light 10^(-9) second to cross a...

A ray of light `10^(-9)` second to cross a glass slab of refractive index 1.5. The thickness of the slab will be

A

0.1 m

B

0.2 m

C

0.3 m

D

0.4 m

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The correct Answer is:
B
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AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-Assignment (Section - A) Objective Type Questions (One option is correct)
  1. A ray of light 10^(-9) second to cross a glass slab of refractive inde...

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  2. The time taken by a monochromatic light to travel a certain distance i...

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  3. A monochromatic light passes through a glass slab (mu = (3)/(2)) of th...

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  4. A glass slab of thickness 4 cm contains the same number of waves as 5 ...

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  5. A beam of light is partially reflected and partially refracted from a ...

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  6. A light ray is travelling from air to glass. True reflected and refrac...

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  7. A small object is placed 20 cm in front of a block of glass 10 cm thic...

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  8. A denser medium of refractive index 1.5 has a concave surface of radiu...

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  9. A point object is situated at a distance of 36 cm from the centre of t...

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  10. In a medium of refractive index 1.6 and having a convex surface has a ...

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  11. Light travels in two media A and B with speeds 1.8 × 10^(8) m s^(–1) a...

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  12. Light takes t(1) second to travel a distance x cm in vacuum and the sa...

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  13. In the figure shown , for an angle of incidence 45^(@), at the top sur...

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  14. A fish is a little away below the surface of a lake. If the critical a...

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  15. A parallel beam of monochromatic light falls on a combination of a con...

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  16. The magnifications produced by a convex lens for two different positio...

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  17. Three lenses in contact have a combined focal length of 12 cm. When th...

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  18. A lens made of material of Refractive index mu(2) is surrounded by a m...

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  19. The radii of curvatures of a convex lens are 0.04 m and 0.04m. Its ref...

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  20. For a plano convex lens, the radius of curvature of convex surface is ...

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