(C) The energy of a photon is given by the equation $E = h \nu$,where $E$ is energy,$h$ is Planck's constant,and $\nu$ is frequency.Given $E = 5.0 \ti

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$7.5 \times 10^{21} \ sec^{-1}$

(C) The energy of a photon is given by the equation $E = h \nu$,where $E$ is energy,$h$ is Planck's constant,and $\nu$ is frequency.Given $E = 5.0 \times 10^{-5} \ erg$ and $h = 6.626 \times 10^{-27} \ erg \ sec$ (in $CGS$ units).Rearranging for frequency: $\nu = \frac{E}{h}$.$\nu = \frac{5.0 \times 10^{-5} \ erg}{6.626 \times 10^{-27} \ erg \ sec} \approx 7.54 \times 10^{21} \ sec^{-1}$.Thus,the correct option is $C$.

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

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Find the frequency of light that corresponds to photons of energy $5.0 \times 10^{-5} \ erg$.

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A
$7.5 \times 10^{-21} \ sec^{-1}$
B
$7.5 \times 10^{-21} \ sec$
C
$7.5 \times 10^{21} \ sec^{-1}$
D
$7.5 \times 10^{21} \ sec$

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Find the frequency of light that corresponds to photons of energy $5.0 \times 10^{-5} \ erg$.

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