EASY
Earn 100

Why the sunlight is referred to as white light?

Important Questions on Light

MEDIUM
A mixture of red, yellow and violet light is incident on one face of a prism, at an angle of incidence of 50°. The angle of emergence of the red beam from the other face is 58.56°. If the angular dispersion of the emerging beam is 4.62°, then
EASY
When white light passes through the prism, colour which deviates the least is:
EASY

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

EASY
In which colour have maximum dispersion
MEDIUM
Which is the following colourful patterns is due to diffraction of light?
EASY
Formation of rainbow involves
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
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 separation of a beam of light into its constituent wavelengths is called
EASY
Find the odd one out from the following.
EASY

Draw the following.

A rainbow

HARD
What are the seven colours that we see in a rainbow?
HARD
Name all the colours present in white light, starting from red, in proper order.
EASY
Name the natural phenomena which is caused by the dispersion of light.
MEDIUM
Name the following:
Sometimes we see this after the rains ______.
HARD
Draw a neat diagram to show (a) how white light gets dispersed, (b) dispersed light reunites to form white light.
EASY
Name the natural phenomenon which is caused by the dispersion of light.
MEDIUM
What are the conditions required for the formation of a rainbow?
HARD
When do we see a rainbow?
MEDIUM

Explain the process of rainbow formation.