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12th ICSE
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A thin prism of glass placed in air produces a deviation of 4° in a light ray. If the prism be placed in water, what would be the new deviation? μga=32, μwa=43

Important Questions on Refraction and Dispersion of Light through a Prism

MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 15
Calculate the angular dispersion of a 10° prism of glass. The refractive indices of glass for violet and red lights are 1.66 and 1.64 respectively.
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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 16
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.
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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: nV=1.56, nR=1.54, nY=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 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?