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12th ICSE

IMPORTANT

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Find the angular dispersion between red and blue rays of light produced by a flint glass prism of refracting angle $6 °$ . The refractive indices of flint glass for red and blue light are $1.644$ and $1.664$ respectively.

Important Questions on Refraction and Dispersion of Light through a Prism

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 17

The refractive indices for light of violet, yellow and red colours for glass are respectively

1.632, 1.620

and

1.613

. Find the dispersive power of glass.

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 18

The deviation produced for violet, yellow and red lights for crown glass are

3.75 °, 3.25 °

and

2.86 °

respectively. Calculate the dispersive power of the crown glass.

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 19

Calculate dispersive power of a transparent material given:

n_{V} = 1 .56, n_{R} = 1 .54, n_{Y} = 1 .55

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 20

The refractive indices of a material for red, violet and yellow lights are

1.52, 1.62

and

1.59

respectively. Calculate the dispersive power of the material. If the mean deviation is

40 °

, then will be the angular dispersion produced by a prism of this material?

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 1

The refractive index of the material of a prism is

\sqrt{2}

and the angle of the prism is

30 °

. On of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is:

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12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 2

In an experiment for determination of the refractive index of a glass of a prism by

i - δ

, plot, it was found that a ray incident at an angle

35 °

, suffers minimum deviation of

40 °

and that it emerges at an angle

79 °

. In that case which of the following is closest to the maximum possible value of the refractive index?

MEDIUM

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 3

The refracting angle of a prism is

A

and the refractive index of its material is

\cot (\frac{A}{2})

. The angle of minimum deviation is:

MEDIUM

12th ICSE

IMPORTANT

ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>For DIFFERENT COMPETITIVE EXAMINATIONS>Q 4

The angle of incidence for a ray of light at a refracting surface of a prism is

45 °

. The angle of prism is

60 °

. If the ray suffers deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

Find the angular dispersion between red and blue rays of light produced by a flint glass prism of refracting angle 6°. The refractive indices of flint glass for red and blue light are 1.644 and 1.664 respectively.

Important Questions on Refraction and Dispersion of Light through a Prism

Learn and Prepare for any exam you want !

Find the angular dispersion between red and blue rays of light produced by a flint glass prism of refracting angle $6 °$ . The refractive indices of flint glass for red and blue light are $1.644$ and $1.664$ respectively.