MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

Explain the formation of rainbow.

Important Questions on Dispersion and Scattering of Light
MEDIUM
12th West Bengal Board
IMPORTANT
What is Raman effect ?

EASY
12th West Bengal Board
IMPORTANT
What are the different kinds of emission spectra ?

EASY
12th West Bengal Board
IMPORTANT
What are absorption spectra ?

HARD
12th West Bengal Board
IMPORTANT
The refractive indices for red and violet lights are and respectively. Find the dispersive power of the glass.

EASY
12th West Bengal Board
IMPORTANT
The indices of refraction of quartz with respect to air at wavelength and are and respectively. Calculate the angular dispersion in degree (assume an angle of incidence )

MEDIUM
12th West Bengal Board
IMPORTANT
The refractive indices of the material of a lens for violet and red light are and respectively. If the focal length of the lens for violet light is , then calculate focal length for red light and

MEDIUM
12th West Bengal Board
IMPORTANT
The refractive indices of the material of a lens for violet and red light are and respectively. If the focal length of the lens for violet light is , then calculate dispersive power of the material.

EASY
12th West Bengal Board
IMPORTANT
The focal length of a convex lens made of flint glass is To remove the chromatic aberration, it is placed in contact with a concave lens made of crown glass. Find the focal length of the concave lens. The ratio of dispersive powers of flint glass to crown glass is
