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DUAL NATURE OF MATTER AND RADIATION
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Question
What is the frequency of a photon with energy 3.98 × 10⁻¹⁹ J?
A. 5.0 × 10¹⁴ Hz
B. 6.0 × 10¹⁴ Hz
C. 7.0 × 10¹⁴ Hz
D. 8.0 × 10¹⁴ Hz
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