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What is the frequency of a photon whose ...

What is the frequency of a photon whose energy 66.3 eV ? Given `: h = 6.63 xx 10^(-34) Js`

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`E = hv, v = ( E )/( h ) =( 66.3 xx 1.6 xx 10^(-19))/(6.63 xx 10^(-34))`
`= 16 xx 10^(15) Hz = 1.6 xx 10^(16)`
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