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प्रश्न
Two radiations with photon energies 0.9 eV and 3.3 eV respectively are falling on a metallic surface successively. If the work function of the metal is 0.6 eV, then the ratio of maximum speeds of emitted electrons in the two cases will be
पर्याय
1 : 4
1 : 3
1 : 1
1 : 9
उत्तर
1 : 3
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