In a Young's double slit experiment, angula width of a fringe formed on a distant screen is 0.1°. If wavelength of light used is 6000 Å , then distance between the slits will be
Answer & explanation
Correct answer: option 2
$θ=\frac{λ}{d}$ or $d=\frac{λ}{θ}$
or $d=\frac{6×10^{-5}×180×7}{0.1×22}=0.344mm$