A Young's Double-Slit Apparatus Is Set Up

question 93

Multiple Choice

A Young's double-slit apparatus is set up.The source wavelength is 424 nm,and the double-slit spacing is 0.0560 mm.At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 1.60 cm? (1 nm = 10−⁹ m)

• A)211 m
• B)2.11 m.
• C)0.825 m
• D)279 m
• E)2.11 m..

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