In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is :

Question

In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600 nm wavelength is used. If the wavelength of light is changed to 400 nm, then the number of fringes he would observe in the same region of the screen is : (A) 12 (B) 6 (C) 8 (D) 9

Tardigrade Admin · Accepted Answer

y=(n λ)((D/d)) n 1 λ1= n 2 λ2 (8) (600 nm )= n 2(400) n 2=12

Q. In a Young's double slit experiment, a student observes $8$ fringes in a certain segment of screen when a monochromatic light of $600 nm$ wavelength is used. If the wavelength of light is changed to $400 nm$ , then the number of fringes he would observe in the same region of the screen is :

12

6

8

9

$y = (nλ) (\frac{D}{d})$
$n_{1} λ_{1} = n_{2} λ_{2}$
$(8) (600 nm) = n_{2} (400)$
$n_{2} = 12$

Q. In a Young's double slit experiment, a student observes 8 fringes in a certain segment of screen when a monochromatic light of 600nm wavelength is used. If the wavelength of light is changed to 400nm, then the number of fringes he would observe in the same region of the screen is :

12

6

8

9

y=(nλ)(dD​) n1​λ1​=n2​λ2​ (8)(600nm)=n2​(400) n2​=12

Q. In a Young's double slit experiment, a student observes $8$ fringes in a certain segment of screen when a monochromatic light of $600 nm$ wavelength is used. If the wavelength of light is changed to $400 nm$ , then the number of fringes he would observe in the same region of the screen is :

$y = (nλ) (\frac{D}{d})$
$n_{1} λ_{1} = n_{2} λ_{2}$
$(8) (600 nm) = n_{2} (400)$
$n_{2} = 12$