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Home Q & A Board Science-Related Homework Help Physics
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mikael mikael
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10 years ago
A phototube has a stopping potential of  0.90 V when the cathode is illuminated with bichromatic light of 400 nm and 600 nm wavelengths. The maximum speed of the emitted photoelectrons, in SI units, is closest to: 
A) 5.6 × 105 
B) 5.3 × 105 
C) 6.2 × 105 
D) 6.6 × 105 
E) 7.5 × 105 
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padrepadre
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9 years ago
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mikael Author
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9 years ago
Thanks again.
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