A monochromatic light with a wavelength lambda=600nm passes through a single slit which has a width of 0.800mm.
a.) What is the distance between the slit and the if the first minimum in the diffraction pattern is at a distance 1.00mm from the center of the screen?
b.) Calculate the width of the central maximum.
Please show all work and explain the concepts behind this if you can.
lamda = 600 nm
d = 0.8 mm = 0.0008 m
y1 = 1.00 mm = 0.001 m
a) let L is the distance between the slit and screen
for first minimum, y1 = lamda*L/d
L = y1*d/lamda
= 0.001*0.0008/(600*10^-9)
= 1.33 m
b) width of the central maximum, delta_y = 2*lamda*L/d
= 2*600*10^-9*1.33/0.0008
= 0.00200 m
= 2.00 mm
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