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A medium is said to be dispersive if...

A medium is said to be dispersive if

A

light of different wavelenghts propagate at different speeds

B

light of different wavelengths propagate at same speed but has different frequencies

C

light is gradually bent rather than sharply refracted at an interface between the medium and air

D

light is never totally internally reflected

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The correct Answer is:
A
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CP SINGH-REFRACTION OF LIGHT BY PLANE SURFACES-Exercises
  1. An isosceles prism of angle 120degree has a refractive index 1.44. Two...

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  2. Two parallel light rays are incident at one surface of a prism of refr...

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  3. P is small angled prism of angle 3^(@) made of a material of refractiv...

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  4. Light is incident normally on face AB of a prism as shown in Figure. A...

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  5. A beam of white light is incident on a hollow prism of glass. Then

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  6. For a small angled prism, angle of prism A of minimum deviation(delta)...

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  7. The graph between angle of deviation (delta) and angle of incidence (i...

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  8. A narrow beam of white light enters slab having parallel faces.

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  9. A medium is said to be dispersive if

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  10. Dispersion can take place for

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  11. The angular dispersion produced by a prism

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  12. Dispersive power depends upon

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  13. If D is the deviation of a normally falling light beam on a thin prism...

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  14. If a glass prism is dipped in water, its dispersive power

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  15. By properly combining two prisms made of different materials, it is po...

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  16. When white light passes through the achromatic combination of prisms, ...

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  17. A prism can produce a minimum deviation delta in a light beam. If thre...

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  18. A thin prism of angle 15^@ made of glass of refractive index mu1=1.5 i...

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  19. An achromatic prism is made by combining two prisms P1(muv=1.523, mur=...

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  20. A prism of a certain angle deviates the red and blue rays by 8^@ and 1...

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