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mikael mikael
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10 years ago
A single slit forms a diffraction pattern, with the first minimum at an angle of 40° from central maximum. Monochromatic light of  640 nm wavelength is used. The same slit, illuminated by a different monochromatic light source, produces a diffraction pattern with the second minimum at a 60° angle from the central maximum. The wavelength of this light, in nm, is closest to: 
A) 431 
B) 457 
C) 483 
D) 508 
E) 534 
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padrepadre
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