Light of Wavelength 418 Nm Is Incident on a Slit

question 15

Multiple Choice

Light of wavelength 418 nm is incident on a slit of width 0.35 mm,and a diffraction pattern is produced on a screen that is 2.4 m from the slit.What is the distance of the second dark fringe from the center of the bright fringe? (1 nm = 10−⁹ m)

• A)2.9E-7 m
• B)5.7E-3 m
• C)1.6E-3 m
• D)1.4E-6 m
• E)1.1E-6 m