Question
A photon has energy 4.0×10^-19 J. Using h=6.63×10^-34 J·s, what is its frequency approximately?
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Correct Answer: D. 6.03 × 10^14 Hz
Explanation:
Frequency is f=E/h.
F=4.0×10^-19 / 6.63×10^-34 ≈ 6.03×10^14 Hz.
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