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mikael mikael
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9 years ago
Light from a He-Ne laser of wavelength 633 nm passes through a circular aperture. It is observed on a screen 4.0 m behind the aperture. The width of the central maximum is  3.5 cm. What is the diameter of the hole? 
A) 180 µm 
B) 3.1 µm 
C) 10,000 µm 
D) 1500 µm 
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padrepadre
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9 years ago Edited: A year ago, bio_man
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Anonymous
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A year ago
Light from a He-Ne laser of wavelength 633 nm passes through a circular aperture. It is observed on a screen 4.0 m behind the aperture. The width of the central maximum is 5.4 cm. What is the diameter of the hole?
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