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

question 19

Multiple Choice

A Young's double-slit apparatus is set up where a screen is positioned 0.80 m from the double slits.If the distance between alternating bright fringes is 0.83 cm,and the light source has a wavelength of 580 nm,what is the separation of the double slits? (1 nm = 10−⁹ m)

• A) 6.0 × 10−⁵ m
• B) 2.8 × 10−⁵ m
• C) 4.9 × 10−⁵ m
• D) 5.6 × 10−⁵ m

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