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DUAL NATURE OF MATTER AND RADIATION
Question #89698
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Question
Calculate the threshold frequency for caesium if its work function is 2.14 eV.
A. 4.50 × 10¹⁴ Hz
B. 5.18 × 10¹⁴ Hz
C. 6.00 × 10¹⁴ Hz
D. 7.20 × 10¹⁴ Hz
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