The threshold frequeny for a metal is 7*10^14 calculate the kinetic energy of an electron emmited when the radiation of frequency 1*10^15 hits the metal

The threshold frequeny for a metal is 7*10^14 calculate the kinetic en

1.	The threshold frequeny for a metal is 710^14 calculate the kinetic energy of an electron emmited when the radiation of frequency 110^15 hits the metal
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