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Assertion (A) : Thin films such as soap ...

Assertion (A) : Thin films such as soap bubble or a thin layer of oil on water show beautiful colours when illuminated by white light.
Reason (R ): The colours are obtained by dispersion of light

A

A is true and R is true and R is the correct explanation of A.

B

A and R are true but R is not correct explanation of A

C

A is true, R is false

D

A is false, R is true.

Text Solution

Verified by Experts

The correct Answer is:
C
The beautiful colours are obtained due to interference of light reflected from the upper aqnd lower surface of thin flim. As the condition for constructive and destructive interference are dependent on wavelength of light. Hence coloured interference fringes are observed. A is true and R is fslse
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