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d-orbitals.
(1 Point)
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19.Q 12. What is photoelectric effect. The threshold frequency for a metal is 7 X 10(14) S-1. Calculate
the kinetic energy of an electron emitted when radiation of frequency 1 X 10(15) S-1 hits the
metal. - IS
(3 Points)
the phenomen of ejection of electron from the
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