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In YDSE, the two slits are separated by ...

In YDSE, the two slits are separated by 0.1 mm and they are
0.5 m from the screen. The wavelength of light used is 5000 Å. Find the distance
between 7th maxima and 11 th minima on the upper side of screen.

Text Solution

Verified by Experts

Given, d= 0.1mm, D=0.5m and
`lamda = 5000Å = 5.0 xx 10^(-7) m`
`Delta y = (y_11)_(dark) - (y_7)_("bright") = ((2 xx 11 - 1)lamda D )/(2d) - (7 lamda D)/(d)`
`= 8.75 xx 10^(-3) m = 8.75 mm`
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