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Dispersive power of a prism is……….of………....

Dispersive power of a prism is……….of……….and………. .

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the ratio , angular dispersion , mean deviation.
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Angular dispersion of a prism is……….of………..and……….colours.

On what factors does the dispersive power of a prism depend ?

Dispersive power depends upon

Dispersive power depend upon

Statement 1: If two prisms of small apex angles are made of same material then prism of larger apex angle will produce more dispersion. Statement 2: Dispersive power of a prism is proportional to apex angle of prism.

Dispersive power of a prism with the increase in prism angle

Dispersive power of the material of prism is 0.0221 . If the deviation produced by it for yellow colour is 38^ @ then the angular dispersion between red and violet colours is

When a ray of sun light passes through the prism each colour of light has its own speed in the glass. The seven colours come out of the prism with different angles of deviation. Red deviates least and violet deviates maximum. Thus a prism can disperse a white light into seven colours which is called colour spectrum. For a thin prism the angle of deviation is given as 8 =(n-1) The angle of dispersion is given as 0 = 8 -0. The dispersive power of a prism is 0 mean 8 Using the above ideas give answer the following questions A prism has R.I. for violet and red = 1.523 n = 1.5145. If the angle of prism is A = 2° the dispersive power of the prism is :

Dispersion Of Light |Prism

Dispersive power does not depend upon

PRADEEP-OPTICS-Exercise
  1. Wavelength of violet colour is……… wavelength of red colour. Therefore,...

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  2. Angular dispersion of a prism is……….of………..and……….colours.

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  3. Dispersive power of a prism is……….of……….and………. .

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  4. Intensity of scattered light varies…………………as……………..of wavelength of in...

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  5. Calculate the refractive index of the material of an equilaterial pris...

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  6. A ray of light suffers minimum deviation, while passing through a pri...

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  7. A ray of light is inclined to one face of a prism at an angle of 60^@....

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  8. A glass prism has a refracting angle of 60^@. The angle of minimum dev...

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  9. A small angled prism (mu = 1.62) gives a deviation of 4.8. Calculate t...

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  10. Show that the angle of deviation produced by a thin prism is reduced t...

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  11. The refractive index of the material of a prism of 60^(@) angle for ye...

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  12. A prism of refractive index 1.53 is placed in water of refractive inde...

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  13. A ray of light is inclined to one face of a prism at an angle of 60^@....

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  14. A glass prism has a refracting angle of 60^@. The angle of minimum dev...

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  15. The angle of minimum deviation for prism of angle pi//3 is pi//6. Calc...

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  16. A glass prism of angle 72^(@) and refractive index 1.66 is immersed in...

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  17. A prism with refracting angle 60^@ gives angle of minimum deviation, 5...

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  18. The refractive indices of a prism for red, violet and yellow lights ar...

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  19. Find the angle of flint glass prism which produces the same angular di...

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  20. The deviations produced for violet, yellow and red lights in case of f...

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