A) No change
B) Diffraction bands become narrower and crowded together
C) Bands become broader and farther apart
D) Bands disappear altogether
Correct Answer: B
Solution :
Wavelength of blue light \[({{\lambda }_{blue}})\] is less than wavelength of red light because width of diffraction bands is directly proportional to \[\lambda \]. Therefore diffraction bands become narrower and crowded.
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