If a photon of energy 9.0 \times 10^{-19} \text{ J}9.0×10 −19 J ejects an electron (m_e = 9.11 \times 10^{-31} \text { kg}m e =9.11×10 −31 kg) from a metal having a workfunction energy of 2.2 \text{ eV}2.2 eV, the velocity of the emitted electron is:
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9.11×10_31 kg ------------
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If a photon of energy 9.0 \times 10^{-19} \text{ J}9.0×10
−19
J ejects an electron (m_e = 9.11 \times 10^{-31} \text { kg}m
e
=9.11×10
−31
kg) from a metal having a workfunction energy of 2.2 \text{ eV}2.2 eV, the velocity of the emitted electron is:
Explanation:
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