A Young's Interference Experiment Is Conducted with Blue-Green Argon Laser $\lambda$

question 8

Multiple Choice

A Young's interference experiment is conducted with blue-green argon laser light ( $\lambda$ = 515 nm) . The separation between the slits is 0.50 mm, and the interference pattern appears on a screen 4.95 m away. What is the spacing between the bright fringes? (1 nm = 10 ^{- 9} m)

• A) 3.4 mm
• B) 5.1 mm
• C) 1.7 mm
• D) 6.8 mm

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