In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths and . At what minimum distance in mm from the common central bright fringe on the screen 2 m from the slit will a bright fringe from one interfe

Question

In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths $λ_{1} = 12000$ $Å$ and $λ_{2} = 10000$ $Å$ . At what minimum distance in mm from the common central bright fringe on the screen 2 m from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

Smart Achievers · Accepted Answer

(2)

$m . λ_{1} = n . λ_{2}$

$m = 5$ and $n = 6$

So $y = \frac{5 D λ_{1}}{d}$

Solution

1 8

2 6

3 5

4 3

Ans.
(2)

$m . λ_{1} = n . λ_{2}$

$m = 5$ and $n = 6$

So $y = \frac{5 D λ_{1}}{d}$

Want Us to Email you About Special Offers & Updates?

Solution

1 8

2 6

3 5

4 3

Ans. (2) m.λ1=n.λ2 m=5 and n=6 So y=5Dλ1d

Want Us to Email you About Special Offers & Updates?

Ans.
(2)

$m . λ_{1} = n . λ_{2}$

$m = 5$ and $n = 6$

So $y = \frac{5 D λ_{1}}{d}$