MEDIUM
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What is the white light?
 

Important Questions on Light

EASY
When white light passes through the prism, colour which deviates the least is:
EASY
According to wave theory the reason for different colours of light is
EASY
The coloured substances which are used as a paint are known as pigments. In order to obtain various pigments, the subtractive method is used for mixing the pigments. Which of the following colour is not absorbed by yellow and blue pigments?
EASY
The danger signals installed at the top of tall buildings are red. These can be easily seen from a distance because among all other colours, the red light
EASY

When white light is incident on a blue pigment, which colours are reflected? 

EASY

Which of the seven colours deviates (a) the least and (b) the most, when a ray of white light travels through a prism?

EASY
What is the splitting of white light into seven colours called?
EASY
What happens when a beam of sunlight is passed through a glass prism? What is spectrum?
EASY

How many colours are there in white light? Name the various colours of white light.

HARD
When do we see a rainbow?
MEDIUM
White sunlight is not dispersed in air. Why?
EASY
Light of which colour appears on the upper arc of the rainbow?
MEDIUM
With the help of a diagram, show the dispersion of white light of a prism.
EASY
Name a triangular pyramidal piece of glass that splits white light into lights of seven colours.
EASY

How can you show that white light (say, sunlight) consists of seven colours?

EASY
Write the order in which different colours appear in the spectrum of white light.
EASY
Which phenomenon is responsible for the formation of the rainbow?
EASY
The band of seven colours formed on a white screen, when white light passes through a prism (or any transparent medium) is called _____.
EASY
Light of which colour—red or violet, travels faster?