Question 196: Waves Optics

Question

A parallel beam of monochromatic light of wavelength $$600 \mathrm{~nm}$$ passes through single slit of $$0.4 \mathrm{~mm}$$ width. Angular divergence corresponding to second order minima would be _________ $$	imes 10^{-3} \mathrm{~rad}$$.

Accepted Answer

$$\begin{aligned}
	heta & =(2)\left(\frac{2 \lambda}{a}ight) \
& =\frac{4 \lambda}{a}=\frac{4 	imes 600 	imes 10^{-9}}{0.4 	imes 10^{-3}} \
& =6 	imes 10^{-3}
\end{aligned}$$

Waves Optics

A parallel beam of monochromatic light of wavelength $600 \mathrm{~nm} passes through single slit of 0.4 \mathrm{~mm} width. Angular divergence corresponding to second order minima would be _________ \times 10^{-3} \mathrm{~rad}$.

Choose the correct answer: