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Diffraction of light is observed only, w...

Diffraction of light is observed only, when the obstacle size is-

A

very large

B

very small

C

of the same order that of wavelength of light

D

any size

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The correct Answer is:
C
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ALLEN -WAVE OPTICS-Exercise 1 (Check your Grasp)
  1. Diffraction initiated from obstacle, depends upon the

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  2. Phenomenon of diffraction occurs

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  3. Diffraction of light is observed only, when the obstacle size is-

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  4. which of the following any gives more distinct diffraction

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  5. All fringes of diffraction are of-

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  6. A single slit of width d is placed in the path of beam of wavelength l...

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  7. Direction of the first secondary maximum in the Fraunhofer diffraction...

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  8. Angular width (beta) of central maximum of a diffraction pattern on a ...

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  9. Red light is generally used to observe diffraction pattern from single...

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  10. Calculate angular width of central maxima if lamda=6000Å,a=18xx10^(-5)...

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  11. In single slit fraunhoffer diffraction which type of wavefront is requ...

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  12. In the diffraction pattern of a single slit aperture, the width of the...

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  13. Central fringe obtained in diffraction pattern due to a single slit-

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  14. In a single slit diffraction pattern, if the light source is used of l...

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  15. In the laboratory, diffraction of light by a single slit is being obse...

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  16. Find the half angular width of the central bright maximum in the fraun...

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  17. In a fraunhofer's diffraction by a slit, if slit width is a, wave leng...

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  18. In a fraunhofer's diffraction obtained by a single slit aperture, the ...

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  19. A polariser in used to

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  20. Light waves can be polarised as they are

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