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A diffraction patter is obtained by maki...

A diffraction patter is obtained by making lbue light incident on a narrow slit. It blue light is replaced by red light then

A

diffraction bands disappear

B

diffraction bands become broader

C

diffraction bands become narrower

D

there is not change in diffraction pattern

Text Solution

Verified by Experts

The correct Answer is:
B
`asintheta=lamda` i.e., `theta prop lamda and lamda_(R) gt lamda_(b)`
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Knowledge Check

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

    A
    no change
    B
    diffraction bands become narrower and crowded together
    C
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  • A single slit diffraction pattern is obtained using a beam of red light. If the red light is replaced by the blue light, then the diffraction pattern

    A
    remains unchanged
    B
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    C
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    D
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  • A diffraction is obtained by using a beam of red light. What will happen if the red light is replaced by the blue light?

    A
    (a) Bands will narrower and crowd full together
    B
    (b) Bands become broader and further apart
    C
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    D
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