A Red Laser Pointer with a Wavelength of 635 Nm

question 44

Multiple Choice

A red laser pointer with a wavelength of 635 nm is shined on a 200-lines/mm diffraction grating.A screen is then placed a distance of 1.0 m behind the diffraction grating to observe the diffraction pattern.How far away from the central maximum will the next bright spot be on the screen?

• A)13 cm
• B)32 cm
• C)38 cm
• D)65 cm
• E)75 cm

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