A single slit is used to observe diffraction pattern with red light. on replacing the red light with violet light the diffraction pattern would:

Question

A single slit is used to observe diffraction pattern with red light. on replacing the red light with violet light the diffraction pattern would: (A) remain unchanged (B) become narrower (C) become broader (D) disappear

Tardigrade Admin · Accepted Answer

In diffraction pattern, fringe width is proportional to λ . We know that wavelength of violet light is less than that of red light, so on replacing red light with violet light, diffraction pattern would become narrower.

Q. A single slit is used to observe diffraction pattern with red light. on replacing the red light with violet light the diffraction pattern would:

remain unchanged

become narrower

become broader

disappear

In diffraction pattern, fringe width is proportional to $λ .$ We know that wavelength of violet light is less than that of red light, so on replacing red light with violet light, diffraction pattern would become narrower.

Q. A single slit is used to observe diffraction pattern with red light. on replacing the red light with violet light the diffraction pattern would:

remain unchanged

become narrower

become broader

disappear

In diffraction pattern, fringe width is proportional to λ. We know that wavelength of violet light is less than that of red light, so on replacing red light with violet light, diffraction pattern would become narrower.

In diffraction pattern, fringe width is proportional to $λ .$ We know that wavelength of violet light is less than that of red light, so on replacing red light with violet light, diffraction pattern would become narrower.