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Red light is generally used to observe d...

Red light is generally used to observe diffraction pattern from single slit. If blue light is used instead of red light, then diffraction pattern.

A

will be more clear

B

will be contract

C

will be expanded

D

will not visualize

Text Solution

Verified by Experts

The correct Answer is:
B
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ALLEN-WAVE OPTICS-Exercise 1 (Check your Grasp)
  1. Direction of the first secondary maximum in the Fraunhofer diffraction...

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

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

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

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

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  6. In the diffractin pattern of a single slit aperture, the width of the ...

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

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

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

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

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

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

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  13. A polariser in used to

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  14. Light waves can be polarised as they are

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  15. Through which character we can distiguish the light waves from sound w...

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  16. The angle of polarisation for any medium is 60^@. What will be critica...

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  17. The angle of incidence at which reflected light is totally polarized f...

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  18. A polaroid is placed at 45^@ to an incoming light of intensity I0. Now...

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  19. Plane polarised light is passed through a polaroid. On viewing through...

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  20. A ray of light is incident on the surface of a glass plate at an angle...

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