Author Question: Light of wavelength 540 nm is incident on a slit of width 0.150 mm, and a diffraction pattern is ... (Read 53 times)

captainjonesify · **on:** Jul 28, 2018

Light of wavelength 540 nm is incident on a slit of width 0.150 mm, and a diffraction pattern is produced on a screen that is 3.00 m from the slit. What is the width of the central bright fringe? (1 nm = 10-9 m)
a. 1.44 cm
c. 2.16 cm
b. 0.720 cm
d. 1.76 cm

Question 2

In a Young's double-slit experiment, by how many wavelengths do the paths from the slits to the screen differ for the m = 3 and the m = 8 minima?
a. 10
b. 2.5
c. 5
d. Some other value than those given since this is for destructive interference.