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A diffraction pattern is obtained using ...

A diffraction pattern is obtained using beam of red light. What happens if the red light is replaced by blue red

A

no change

B

diffraction bands become narrower and crowded together

C

bands become broader and farther apart

D

bands disappear

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-WAVES OPTICS-EXERCISE -IA (DIFFRACTION)
  1. The source is at some distance from an obstacle. Distance between obst...

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  2. A very small opaque disc is placed in the path oa a monochromatic ligh...

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  3. A diffraction pattern is obtained using beam of red light. What happen...

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  4. In a diffraction pattern the width of any fringe is

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  5. Yellow light is used in a single slit of diffraction experiment with s...

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  6. In diffraction froma a single -slit, the angular width of the centre m...

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  7. The correct relation between limit of resolution and resolving power i...

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  8. The ratio of the resolving power of an electron microscope to that of ...

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  9. The limit of resolution of eye is approximately

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  10. The angular resolution of the telescope is determined by the

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  11. In telescope of objective diameter (2a), the radius of the central bri...

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  12. For better resolution, a telescope must have a

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  13. What will be ratio (D"/"f) in microscope where, D is the diameter of t...

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  14. The resolving power of a microscope is basically determined by the

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  15. If the light is replaced by blue light illuminating the object in a mi...

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  16. For a telescope to have large resolving power, then the

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  17. If I0 is the intensity of the principal maximum in the single slit dif...

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  18. In Fresnel experiment, a quantity ZF is given by

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  19. The diffraction pattern due to a straight edge contains

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  20. As we move away from the edge into the geometrical shadow of a straigh...

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