Light of Wavelength 580 Nm Is Incident on a Slit

question 114

Multiple Choice

Light of wavelength 580 nm is incident on a slit of width 0.30 mm.An observing screen is placed 2.0 m past the slit.Find the distance on the screen of the first order dark fringe from the center of the pattern.

• A)0.26 mm
• B)1.5 mm
• C)1.9 mm
• D)3.9 mm
• E)7.7 mm