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6.63 eV ফোটনের কম্পাংক হলো -

1.6 \times 10^{15} s^{- 1}

6.63 \times 10^{34} s^{- 1}

4.14 \times 10^{15} s^{- 1}

4.14 \times 10^{34} s^{- 1}

ANS : 1

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