Laser Light of 589 Nm Wavelength Is Shone Through Parallel

question 51

Multiple Choice

Laser light of 589 nm wavelength is shone through parallel slits forming a series of maxima on a screen 4.20 m away. If the distance between the central maximum and the first-order maximum is 1.67 cm, what is the slit separation?

• A) 3.90 × 10^-3 cm
• B) 3.98 × 10^-3 m
• C) 9.98 × 10^-5 m
• D) 1.40 × 10^-3 m
• E) 1.48 × 10^-4 m

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