Question

the kinetic energy of electron ejected by using light having frequency equal to threshold frequency is​

Answer 1

Answer:

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Kinetic energy will be zero

Answer 2

Answer:

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Explanation:

Threshold Frequency is the maximum frequency by using which electron can be ejected from a particular metal. The maximum kinetic energy of an electron ejected using the light of threshold frequency is zero. Which means the out of all the electrons ejected using the light of threshold frequency the one with the highest KE is zero and all with KE lower than that (negative) will go back into the metal.