It is said that number of electrons ejected depends on intensity of li – InterviewSolution

1.	It is said that number of electrons ejected depends on intensity of light but do not depends on frequency of light.But when red light of high intensity strikes potassium metal surface it can't eject electrons.When yellow light having low intensity and high frequency strikes the potassium metal surface electrons ejected.Why?
Answer» It is said that number of electrons ejected depends on intensity of light but do not depends on frequency of light.But when red light of high intensity strikes potassium metal surface it can't eject electrons.When yellow light having low intensity and high frequency strikes the potassium metal surface electrons ejected.Why?

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