Question

a) Two very narrow parallel slits separated by a distance d1 = 1.0 mm are illuminated with monochromatic light with a wavelength of 400 nm. An interference pattern is observed on a screen 1.3 m away. (i) What is the distance between the central and first interference maxima on the screen? (ii) What changes on the separation between the central and first interference maxima if the distance between the slits is increased slightly to a position d2? b) Light passes through a slit and shines on a flat screen that is located L = 0.40 m away. The wavelength of the light in a vacuum is ? = 410 nm. The distance between the midpoint of the central bright fringe and the first dark fringe is y. Determine the width 2y of the central bright fringe when the width of the slit is: (i) 5.0 x 10^-6 m (ii) 2.5 x 10^-6 m.

          a) Two very narrow parallel slits separated by a distance d1 = 1.0 mm are illuminated with monochromatic light with a wavelength of 400 nm. An interference pattern is observed on a screen 1.3 m away.

(i) What is the distance between the central and first interference maxima on the screen?

(ii) What changes on the separation between the central and first interference maxima if the distance between the slits is increased slightly to a position d2?

b) Light passes through a slit and shines on a flat screen that is located L = 0.40 m away. The wavelength of the light in a vacuum is ? = 410 nm. The distance between the midpoint of the central bright fringe and the first dark fringe is y. Determine the width 2y of the central bright fringe when the width of the slit is:
(i) 5.0 x 10^-6 m
(ii) 2.5 x 10^-6 m.

a) Two very narrow parallel slits separated by a distance d1 = 1.0 mm are illuminated with monochromatic light with a wavelength of 400 nm. An interference pattern is observed on a screen 1.3 m away.

(i) What is the distance between the central and first interference maxima on the screen?

(ii) What changes on the separation between the central and first interference maxima if the distance between the slits is increased slightly to a position d2?

b) Light passes through a slit and shines on a flat screen that is located L = 0.40 m away. The wavelength of the light in a vacuum is ? = 410 nm. The distance between the midpoint of the central bright fringe and the first dark fringe is y. Determine the width 2y of the central bright fringe when the width of the slit is:
(i) 5.0 x 10^-6 m
(ii) 2.5 x 10^-6 m.

Added by Richard R.

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