In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by 5 x 10^–2 m towards the slits, the change in fringe width is 3 x 10^–5 m. If the distance between the slits is 1 mm, then the wavelength of the light will be - VgyanHub

Question:

In a double slit experiment with monochromatic light, fringes are obtained on a screen placed at some distance from the plane of slits. If the screen is moved by 5 x 10^–2 m towards the slits, the change in fringe width is 3 x 10^–5 m. If the distance between the slits is 1 mm, then the wavelength of the light will be

Options :

(a) 6000 Å
(b) 5000 Å
(c) 3000 Å
(d) 4500 Å

Answer :

(a) 6000 Å

Answer Steps :

step 1

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