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When the distance between the dark and the bright fringes remains constant throughout, then it is known as linear fringe width. And therefore, the ratio of fringe width for bright to dark fringe is 1. It is denoted by β. Expression for fringe width. Path difference between the lights from two slits S1 and S2 respectively and reaching to the ...
In Young's double slit experiment, fringes of certain width are produced on the screen kept at a certain distance from the slits. When the screen is moved away from the slits by 0.1 m, fringe width increase by 6 × 10 − 5 m. The separation between the slits is 1 mm. Calculate the wavelength of the light used.
Dec 18, 2022 · This eqn. (4), ‘β=λD/d’ is called Fringe width formula in Young’s experiment. From eqns. (2) and (4), it is evident that the fringes width of bright fringe and dark fringe is the same. If we know the value of “D” and “d” then the measurement of the fringe width (β) gives a direct determination of the wavelength of light.
May 16, 2021 · According to my book, the width of a bright fringe and a dark fringe is equal (see figure). If the distance between two consecutive maxima or two minima is $\Delta x$ then the width of $\delta x$ or dark fringe or bright fringe or "fringe width" is $\frac{\Delta x}{2}$. But I think the book is wrong.
4 days ago · The light intensity that the slits produce keeps on increasing with the increased width of the slit. Therefore, the screen develops a brighter fringe with an increase in the slit width. Coloured fringes are then created on the screen if we replace the monochromatic light with the white light. Fringe width is denoted as β, which is equal to μD ...
Calculate the fringe width for light of wavelength 550 nm in a Young's slit experiment where the double slits are separated by 0.75 mm and the screen is placed 0.80 m from them. Fringe width (x) = λD/d = 550x10-9 x0.80/0.75x10-3 = 5.9x10-4 m = 0.59 mm
The fringe width of interference pattern obtained at screen is. Hard. View solution > For which colour is the fringe width minimum? Easy. View solution >
