EASY
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The phenomenon of scattering of light by the colloidal particles gives rise to effect.

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Important Questions on Human Eye and Colourful World

MEDIUM
What happens if dispersion and scattering of light do not occur?
MEDIUM

Which of the following statements is not true for scattering of light?

EASY

In the given figure, what is the angle of prism?

Question Image

EASY
The splitting of white light into 7colours is called
EASY
The graph between angle of deviation δ and angle of incidence i for a triangular prism is represented by :
HARD
What is the reason for the blue colour of the sky? How do you appreciate the role of molecules in the atmosphere in this regard?
EASY

The phenomenon of scattering of light by colloidal particles is called ______.

EASY
What phenomenon of light causes the blue colour of the sky and the reddening of the sun at sunrise or sunset?
EASY
Write the material that you used to find out the value of refractive index of a prism. What is the necessity of the graph in this experiment?
EASY
What would be the colour of the sky if the earth had no atmosphere?
EASY

Match the following correctly:

Phenomenon Cause
I. Rainbow a Scattering of light
II. Brilliance of diamond b. Dispersion of light
III. Blue colour of sky c. Atmospheric Refraction
IV. Advance sunrise and delayed sunset d. Total internal reflection

 

EASY
The sky as seen from the surface of the moon appears dark because,
EASY
During sunset or sunrise the sun appears reddish because:
EASY
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
EASY
The sun appears red at sunrise and white when it is overhead at noon because
EASY
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
EASY
The bluish colour of water in deep sea is due to 
EASY
The sky looks blue on a clear, sunny day because of