Physics

Problem

Two separate Young’s double-slit experiments are performed with light of wavelengths

500\,\text{nm}

and

600\,\text{nm}

, keeping the slit separation and the screen distance identical. What is the ratio

\dfrac{β_{600}}{β_{500}}

of the fringe widths obtained? a)

\dfrac{5}{6}

\dfrac{6}{5}

\dfrac{36}{25}

1