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A glass slab of thickness 4 cm contains ...

A glass slab of thickness `4 cm` contains the same number of waves as `5 cm` of water, when both are traversed by the same monochromatic light. If the refractive index of water is `4//3,` then refractive index of glass is

A

`5/3`

B

`5/4`

C

`16/15`

D

`3/2`

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The correct Answer is:
A
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AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-EXERCISE
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  2. A small object is placed 20 cm in front of a block of glass 10 cm thic...

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

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  4. The velocities of light in two different media are 2*10^8m/s and 2.5 *...

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

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

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

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  11. A convex glass lens (mu(g) = 1.5) has a focal length of 8 cm when plac...

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  12. A convex mirror forms an image one-fourth the size of the object. If o...

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  14. While a moving picture is being screened, a boy introduced a glass sla...

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

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

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  17. A light ray is incident normally on one of the refracting faces of a p...

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  18. If a light ray incidents normally on one of the faces of the prism of ...

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  20. A prism of refractive index sqrt(2) has a prism angle of 60^(@). At wh...

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