2 The electron in the hydrogen atom jumps from excited state n 4 to its ground state n 1 and photon thus emitted irradiate a

Question

2 The electron in the hydrogen atom jumps from excited state n 4 to its ground state n 1 and photon thus emitted irradiate a photosensitive metal If work function of metal is 2 75 eV the stopping potential is estimated to be 1 4 V 3 10 V 2 2 V 4 5 V

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