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When exposed to sunlight, thin films of ...

When exposed to sunlight, thin films of oil on water often exhibit brilliant colours due to the phenomenon of .....

A

interference

B

diffraction

C

dispersion

D

polarisation

Text Solution

Verified by Experts

The correct Answer is:
A
The colour in the oil film is formed due to interference of sunlight where the colour of the film will depend upon the thickness and the angle of inclination.
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KUMAR PRAKASHAN-WAVE OPTICS-SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)
  1. In case of linearly polarised light, the magnitude of the electric fie...

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  2. A stone thrown into still water creates a circular wave pattern moving...

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  3. When exposed to sunlight, thin films of oil on water often exhibit bri...

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  4. Which properties are independent of each other for waves propagating i...

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  5. In Young's double slit experiment, the distance between two slits is m...

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  6. Light is incident normally on a diffracting grating through which the ...

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  7. Which out of following cannot produce two coherent sources ?

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  8. In Young's double slit experiment, the two slits act as coherent sourc...

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  9. In an interference the intensity of two interfering waves are I and 4I...

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  10. In a single slit diffraction with lambda = 500 nm and a lens of diamet...

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  11. A: Particle theory fails to explain the velocity of light in air and w...

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  12. A: It is not possible to have an interference between sound waves prod...

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  13. A: The obstacle must be in the order of 10^(-7)m to see the differatio...

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  14. A: To increase resolving power of a telescope, the diameter of objecti...

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  15. What changes during the polarisation of light?

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  16. If light of intensity lo is incident at an angle 45^(@) with optical a...

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  17. What should be wavelength of light to get 5^(th) bright fringe at a po...

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  18. The polarisation of light proved that light is composed of ......

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  19. The limit of resolution of an optical instrument arises an account of ...

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  20. Ray of light moving in water incidents on glass plate. Reflected light...

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