Question

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) becomes narrower
(c) becomes broader (d) will disappear

Answer 1

Answer:

Since, wavelength of blue light is less than that of red light, so angular width of diffraction pattern is less when blue light is used. So the diffraction pattern becomes narrower...

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