A Young's Double-Slit Apparatus Is Set Up So That a Screen

question 81

Multiple Choice

A Young's double-slit apparatus is set up so that a screen is positioned 2.1 m from the double slits,and the spacing between the two slits is 0.033 mm.What is the distance between alternating bright fringes on the screen if the light source has a wavelength of 678 nm? (1 nm = 10−⁹ m)

• A)3.0E-4 m
• B)4.3E-2 m
• C)2.1E-2 m
• D)4.7E-2 m
• E)1.1E-2 m

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