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An electron in the hydrogen atom jumps from excitedstate n to the ground state. The wavelength soemitted illuminates a photosensitive material havingwork function 12.75 eV If the stopping potential ofthe photoelectron is 10 V, then the value of n isTAIPMT (Mains)-2011)(1) 5(2) 2(3) 3(4) 4​

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