EASY
12th ICSE
IMPORTANT
Earn 100

How does the speed of light in glass change on increasing the wavelength of light. Explain similarly for the speed of light in vacuum.

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 6
How does the speed of light in glass change on increasing the intensity of light. Explain similarly for the speed of light in vacuum.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 7
Rays of red and blue light are incident on a given prism. Explain which will have the larger angle 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 8
What is angular dispersion? Draw the path of a ray of white light passing through a prism and mark angular dispersion on it.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 9
Define dispersive power of the material of a prism.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 10
State two basic differences between primary and secondary rainbows.
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 11

The refractive indices for crown and flint glasses for red and violet light are:

 Light Crown Flint
Red 1.515 1.644
Violet 1.532 1.685

Which glass will be more suitable for spectacle lens and why?

EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 12
Why there is no dispersion in white light refracted through a rectangular glass slab?
EASY
12th ICSE
IMPORTANT
ISC Physics Class 12, Part-2>Chapter 4 - Refraction and Dispersion of Light through a Prism>QUESTIONS>Q 13
Is there is no dispersion even inside the glass slab?