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Vacuum wavelengths are 100, 500 and 1000 nm. Which has highest frequency?

AThe 100 nm beam
BAll beams equally
CThe 500 nm beam
DThe 1000 nm beam
Answer & Solution
Correct answer: A. The 100 nm beam
Frequency is inversely proportional to wavelength, making the 100 nm radiation the highest-frequency beam.
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