Let S1 and S2 be the two slits in a Young's double slit experiment. If central maxima is observed at P and ∠ S1PS2=θ (θ is small), find the y−coordinate of the third minima assuming the origin to be at the central maxima, λ is the wavelength of light used.

Let S1 and S2 be the two slits in a Young's double slit experiment. If

1.	Let S1 and S2 be the two slits in a Young's double slit experiment. If central maxima is observed at P and ∠ S1PS2=θ (θ is small), find the y−coordinate of the third minima assuming the origin to be at the central maxima, λ is the wavelength of light used.
Answer» Let $S_{1}$ and $S_{2}$ be the two slits in a Young's double slit experiment. If central maxima is observed at $P$ and $∠ S_{1} P S_{2} = θ (θ is small)$ , find the $y -$ coordinate of the third minima assuming the origin to be at the central maxima, $λ$ is the wavelength of light used.