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If refractive index of red, violet and y...

If refractive index of red, violet and yellow light are `1.42, 1.62` and `1.50` respectively for a medium. Its dispersive power will be

A

0.4

B

0.3

C

0.2

D

0.1

Text Solution

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The correct Answer is:
A
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MOTION-RAY OPTICS-Exercise-1
  1. The refractive index of flint glass for blue F line is 1.6333 and red ...

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  2. Indicate the correct statement in the following

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  3. If refractive index of red, violet and yellow light are 1.42, 1.62 and...

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  4. The respective angles of the flint and crown glass prisms are A' and A...

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  5. Minimum and maximum distance should be for clear vision of healthy eye

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  6. The angle of a glass prism is 4.5^(@) and its refractive index is 1.52...

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  7. The wavelength of light in two liquids ‘ x ' and ‘ y ' is 3500 Å and ...

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  8. A ray of light passes through an equilateral prism (refractive index 1...

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  9. Prism angle of a prism is 10^(@) ,Their refractive index for red & vio...

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  10. The refractive indices of the material of a lens for violet, yellow an...

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  11. Monochromatic light is refracted from air into the glass of refractive...

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  12. A point object is placed in air at a distance of 40 cm from a concave ...

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  13. An object is placed at a distance of 10 cm (in a medium of μ = 1) from...

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  14. A convex lens of glass (mu = 1.5) is immersed in water. Compared to it...

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  15. The radii of curvatures of a double convex lens are 15 cm and 30 cm, a...

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  16. The two spherical surfaces of a double concave lens have the same radi...

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  17. A thin lens is made with as material having refractive index mu=1.5. b...

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  18. Focal length of a convex lens of refractive index 1.5 is 2 cm. Focal l...

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  19. The focal length of a plano-convex lens is equal to its radius of curv...

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  20. A convex lens of focal length f will form a magnified real image of an...

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