hey gyues its is phyisics numsrical plz help me resion
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go to google to find the answer
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use this relation of kmax in which E can be calculated from product of h(planck const) and frequency(given) ,and is work function u have already given .
one more thing convert 1eV into joule so that energy units will be same with work function
one more thing convert 1eV into joule so that energy units will be same with work function
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