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The prism shown in figure has a refracti...

The prism shown in figure has a refractive index of `1.60` and the angles A are `30^@.` Two light rays P and Q are parallel as they enter the prism. What is the angle between them after they emerge? `[sin^-1(0.8)=53^@]`

A

`15^@`

B

`30^@`

C

`45^@`

D

`60^@`

Text Solution

Verified by Experts

The correct Answer is:
B
`mu=((sini)/(sin45^@))` or `sqrt3/2=sin i/((1//sqrt2))` or `i=60^@`

`:. delta=60^@-45^@=15^@`

`theta=2delta=30^@`
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DC PANDEY-REFRACTION OF LIGHT-Level 1 Objective
  1. The refracting angle of a prism is A and refractive index of the mater...

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  2. A prism of refractive index sqrt2 has refractive angle 60^@. In the or...

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  3. The focal length of a combination of two lenses is doubled if the sep...

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  4. A convexo-concave convergent lens is made of glass of refractive index...

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  5. An optical system consists of a thin convex lens of focal length 30 cm...

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  6. In the figure shown, the angle made by the light ray with the normal i...

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  7. For refraction through a small angled prism, the angle of minimum devi...

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  8. A ray of light passes from vaccum into a medium of refractive index n....

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  9. A thin convex lens of focal length 30 cm is placed in front of a plane...

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  10. One side of a glass slab is silvered as shown in the figure. A ray of ...

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  11. A prism has refractive index sqrt((3)/(2)) and refractive angle 90^@. ...

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  12. In figure, an air lens of radius of curvature of each surface equal to...

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  13. A point object is placed at a distance of 12 cm from a convex lens of ...

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  14. An object, a convex lens of focal length 20 cm and a plane mirror are ...

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  15. The prism shown in figure has a refractive index of 1.60 and the angle...

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  16. A prism having refractive index sqrt2 and refractive angle 30^@ has on...

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  17. The image for the converging beam after refraction through the curved ...

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  18. A concavo-convex lens is made of glass of refractive index 1.5. The ra...

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  19. From the figure shown, establish a relation between mu1,mu2,and mu3

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  20. When light of wavelength lambda on an equilateral prism, kept on its m...

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