HARD
12th West Bengal Board
IMPORTANT
Earn 100

Draw a labelled ray diagram for the production of pure spectrum.

Important Questions on Dispersion and Scattering of Light

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 10
What is a non dispersive medium?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 11
Why do the rising and the setting sun appear red? 
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 12
Why sky is blue?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 13
Why sea is blue?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 14
Why red light is used as danger signal?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 15
A piece of cloth looking red in daylight may be made to look black at night by using suitable illumination, but a cloth looking black in daylight cannot be made to look red at night by using some similar method. Explain the reasons for these carefully.
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 16
What is dispersion of light? What is its reason? What is a spectrum?
MEDIUM
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 15 - Dispersion and Scattering of Light>EXERCISE 15>Q 17
Write the colours of the spectrum in order of their wavelengths. Which colour has got greater refrangibility red or violet?