Q3 of 40 Page 60

Describe Tyndall effect.

Tyndall effect is the phenomenon in which the path of the light ray is visible when it travels in a colloidal solution.

Examples: light rays visible in dense forest or a smoke-filled room.

Explain the formation of rainbow with a neat figure.

Write a note on “twinkling of stars.”

Why does the clear sky appear blue in colour?

Explain the dispersion of white light by a glass prism using necessary figure.

Questions · 40

3. Dispersion of light and natural Optical phenomena

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