Question

A single slit diffraction pattern is obtained using a beam of red light. If red light is replaced by blue light, then:

• A. The diffraction pattern will disappear.
• B. Fringes will become narrower and crowded together.
• C. Fringes will become broader and will be further apart.
• D. There is no change in the diffraction pattern.

Hint:

In diffraction experiments, the angular width of the fringes is inversely proportional to the wavelength. A shorter wavelength results in narrower fringes.