Light wave length 4.5*10^-7m is incidents on a metal resulting in emission of photo electron. If the work function of the metal 3.0*10^-9g. calculate: I) Frequencyof the incidents light.
II) Energy of the incidents light.
III) Energy of the photo electron.
IV) Speed of light(3.0*10^8, h=6.6*10^-34)?
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Asked by Ann on 26th October, 2018
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