EASY
Earn 100

Red and yellow have a longer wavelength than blue.

50% studentsanswered this correctly

Important Questions on The Human Eye and the Colourful World

EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light

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

MEDIUM
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
What happens if dispersion and scattering of light do not occur?
MEDIUM
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
What happens when a beam of light is passed through a colloidal solution?
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Why is the colour of clear sky blue?
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Draw a labelled diagram to show (i) reddish appearance of the sun at the sunrise or the sunset and (ii) white appearance of the sun at noon when it is overhead.
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Why is the colour of clear sky blue?
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Explain the formation of rainbow.
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
 What is Tyndall effect?
MEDIUM
Science>Physics>The Human Eye and the Colourful World>Scattering of Light

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

EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
The graph between angle of deviation δ and angle of incidence i for a triangular prism is represented by :
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Danger signals are red. Why?
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Why does the sun appear reddish early in the morning ? Will this phenomenon be observed by an astronaut on the Moon ? Give reason to justify your answer. 
MEDIUM
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Draw a raw diagram of scattering of light in colloidal solution.
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
The blue colour of sky is due to:
HARD
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Why does the sun appear reddish early in the morning? Draw the ray diagram of an arrangement for observing scattering of light in colloidal solution.
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light

Why does rising Sun appears red in colour?

EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
The sky as seen from the surface of the moon appears dark because,
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light

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

Question Image

EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
Why is Tyndall effect shown by colloidal particles? State four instances of observing the Tyndall effect.
EASY
Science>Physics>The Human Eye and the Colourful World>Scattering of Light
During sunset or sunrise the sun appears reddish because: