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

question 55

Multiple Choice

A Young's double-slit apparatus is set up so that a screen is positioned 1.6 m from the double slits,and the spacing between the two slits is 0.0315 mm.What is the distance between alternating bright fringes on the screen if the light source has a wavelength of 630 nm? (1 nm = 10−⁹ m)

• A) 0.016 m
• B) 0.047 m
• C) 0.025 m
• D) 0.032 m

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