question_answer

In an experiment of single slit diffraction pattern, first minimum for red light coincides with first maximum of some other wavelength. If wavelength of red light is 6600 Å, then wavelength of first maximum will be: [JEE ONLINE 12-04-2014]

A) 3300Å

B) 4400Å

C) 5500Å

D) 6600Å

Correct Answer: B

Solution :

[b] In a single slit experiment,

For diffraction maxima, and for diffraction minima,

According to question,