Question

☀ WHAT IS YOUNG DOUBLE SLIT EXPERIMENT??? ☀ ​

Answer 1

Answer:

S is equidistant from s1 and s2. s1 and s2 behave as two coherent sources, as both bring derived from S. The light passes through these slits and falls on a screen which is at a distance 'D' from the position of slits s1 and s2.

Answer 2

YOUNG DOUBLE SLIT EXPERIMENT

With the help of this experiment Young's demonstrated the phenomenon of the interference. this allowed sunlight topass through a pin hole S and then at some distance two surffciently close pin holes $\sf S_1$in an opaque screen

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Let the distance between two monachromatic coherent sources be 2d and the distance from the source from screen be D.

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Let O be the point of maximum intensity.

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⠀⠀⠀⠀⠀BRIGHT FRINGE

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path difference of both slits A$\sf S_1$and$\sf S_2$

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$\sf S_2 P = S_1P = \frac{2x_nd}{D} = n \ λ$

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$\sf x_n = \frac{nDλ}{2D}$

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⠀⠀⠀⠀⠀DARK FRINGE

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$\sf \frac{2x_n D}{D} = (2n - 1) \frac{ λ}{n}$

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$\sf x_n = \frac{(2_n + 1) λD}{D}$

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The spacing is known as fringe width, $\sf \beta = \frac{λD}{2d}$