In a Young's double slit experiment the slit separation is 0.4 mm and the distance between the screen and the slit is 120 cm. If the 3rd dark fringe formed at 0.5 cm from the central bright fringe. Find the wavelength of the light in cm. (a) 6.6x10- cm (b) 3.3×10- cm (c) 4.5x10 cm (d) 5.5x103 cm

In a Young's double slit experiment the slit separation is 0.4 mm and the distance between the screen and the slit is 120 cm. If the 3rd dark fringe formed at 0.5 cm from the central bright fringe. Find the wavelength of the light in cm. (a) 6.6x10- cm (b) 3.3×10- cm (c) 4.5x10 cm (d) 5.5x103 cm

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter35: Diffraction And Interference

Section: Chapter Questions

Problem 8PQ: Monochromatic light is incident on a pair of slits that are separated by 0.200 mm. The screen is...

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Concept explainers

Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.

Question

In a Young's double slit experiment the slit separation is 0.4 mm and the distance between
the screen and the slit is 120 cm. If the 3rd dark fringe formed at 0.5 cm from the central
bright fringe. Find the wavelength of the light in cm.
(a) 6.6x10- cm
(b) 3.3×10- cm
(c) 4.5x10 cm
(d) 5.5x103 cm

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