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कृपया अपनी पसंदीदा भाषा चुनें
एक धातु की श्वेत प्रकाश आवृत्ति $6.63 eV$ कार्य फलन है:
(1) $16 \times 10^{15} Hz$
(2) $16 \times 10^{12} Hz$
(3) $1.6 \times 10^{12} Hz$
(4) $1.6 \times 10^{15} Hz$
$\phi _0=h v$
$6.63 \times 1.6 \times 10^{-19}=1.0608 \times 10^{-28} v _0$
$v _0=\frac{1.6 \times 10^{-19}}{10^{-34}}$
$v _0=1.6 \times 10^{12} Hz$
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