In Young's double slit experiment the two slits are 0.6 mm distance apart. Interference pattern is observed on a screen at a distance 80 cm from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be nm.

Question

In Young's double slit experiment the two slits are 0.6 mm distance apart. Interference pattern is observed on a screen at a distance 80 cm from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be nm. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

d=0.6 × 10-3 D=80 × 10-2 1 st Dark fringe =(D λ/2 d)=(d/2), λ=(d2/D) =450 × 10-9 m

Q. In Young's double slit experiment the two slits are $0.6 mm$ distance apart. Interference pattern is observed on a screen at a distance $80 c m$ from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be _______ $nm$ .

$d = 0.6 \times 1 0^{- 3}$
$D = 80 \times 1 0^{- 2}$
$1$ st Dark fringe $= \frac{D λ}{2 d} = \frac{d}{2}, λ = \frac{d ^{2}}{D}$
$= 450 \times 1 0^{- 9} m$

Q. In Young's double slit experiment the two slits are 0.6mm distance apart. Interference pattern is observed on a screen at a distance 80cm from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be _______nm.

d=0.6×10−3 D=80×10−2 1 st Dark fringe =2dDλ​=2d​,λ=Dd2​ =450×10−9m

Q. In Young's double slit experiment the two slits are $0.6 mm$ distance apart. Interference pattern is observed on a screen at a distance $80 c m$ from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be _______ $nm$ .

$d = 0.6 \times 1 0^{- 3}$
$D = 80 \times 1 0^{- 2}$
$1$ st Dark fringe $= \frac{D λ}{2 d} = \frac{d}{2}, λ = \frac{d ^{2}}{D}$
$= 450 \times 1 0^{- 9} m$