Light of Wavelength 610 Nm Is Incident on a Slit

question 28

Multiple Choice

Light of wavelength 610 nm is incident on a slit of width 0.20 mm,and a diffraction pattern is produced on a screen that is 2.0 m from the slit.What is the distance of the second dark fringe from the center of the central bright fringe? (1 nm = 10−⁹ m)

• A) 1.4 cm
• B) 1.2 cm
• C) 0.68 cm
• D) 0.92 cm

---

Definitions:

Lather

The frothy foam created by agitating soap with water, commonly used for cleaning or bathing.

Rings and Watches

Personal jewelry items worn on fingers and wrists that can pose safety hazards or interfere with medical procedures if not removed.

Hot Water

Water heated to a temperature suitable for bathing, washing, or cooking.

Airborne Precautions

Safety measures implemented to prevent the transmission of diseases that are spread through the air over long distances by small droplets or particles.