EASY
12th ICSE
IMPORTANT
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For which colour of visible light the refractive index of a transparent material is maximum? For which minimum?

Important Questions on Refraction and Dispersion of Light through a Prism

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 12
If rays of red, yellow, green and violet lights are allowed to fall on a prism, for which colour will the angle of deviation be maximum? For which colour will it be minimum?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 13
On what factors does the angular dispersion of a prism depend?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 14
The refractive indices of glass for yellow, green and red light are nY, nG and nR respectively. Arrange these in increasing order of values.
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 1
Draw a properly labelled graph between the angle of incidence and the angle of deviation for a prism and show the point of minimum deviation.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 2
State the factors on which the deviation produced by a prism depends.
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 3
Calculate angle of minimum deviation δm for a regular glass prism. (Refractive index of glass=1.6)
MEDIUM
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 4

In the figure, ABCD is a ray of light passing through an equilateral glass prism EFG, and suffering minimum deviation. Calculate the angle of refraction at B, and the angle EBC. (Refractive index of glass is 1.5)

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EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 5
A ray of light passing through a prism deviate towards the base of the prism. Can you think of a situation when the ray would deviate away from the base?