A slit of width e is illuminated by light of wavelength λ . What should be the value of e to obtain the first maximum at an angle of diffraction of \(\frac{\pi}{3}\) ?
1
\(\frac{2}{\sqrt{3}} \lambda \)
2
\(\frac{\lambda}{\sqrt{3}} \lambda \)
3
\(\sqrt{3} \lambda \)
4
\(\frac{\sqrt{3}}{2} \lambda\)