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10. Tw o narrow slits separated by 0.12 mm are lluminated by a laser and produce a diffraction pattern on a screen 2 m away as shown in the figure. If the third intensity maximum is 3.0 cm away from the central bright spot, what is the wavelength of the laser light? A) 200 nm B) 300 nm C) 400 nm D) 600 nm E) 800 nm 3 cm 0.12 mm
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tamdihom bo Hhid im tensity maximum, dsin823λ dsin 600 mm

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