A Fraunhofer Diffraction Pattern Is Produced from a Light Source

question 76

Multiple Choice

A Fraunhofer diffraction pattern is produced from a light source of wavelength 671 nm.The light goes through a single slit and onto a screen 1.9 m away.The first dark fringe is 6.1 mm from the central bright fringe.What is the slit width? (1 nm = 10−⁹ m)

• A) 0.42 mm
• B) 0.21 mm
• C) 0.07 mm
• D) 0.31 mm
• E) ​0.034 mm

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Definitions:

Hemophilia

A genetic disorder that impairs the body's ability to make blood clots, leading to excessive bleeding from minor injuries.

Thrombocytopenia

A blood disorder characterized by abnormally low levels of platelets, which are essential for blood clotting.

Eosinophilia

An increased number of eosinophils, a type of white blood cell, often indicating an allergic reaction or infection.

Warfarin

A medication used as an anticoagulant to prevent the formation of harmful blood clots by inhibiting blood clotting factors.