Physics · 2011
NEET 2011 · Mains · Code B · Q113
An electron in the hydrogen atom jumps from excited state n to the ground state. The wavelength so emitted illuminates a photosensitive material…
An electron in the hydrogen atom jumps from excited state n to the ground state. The wavelength so emitted illuminates a photosensitive material having work function $\displaystyle 2.75$ eV. If the stopping potential of the photoelectron is $\displaystyle 10$ V, the value of n is :
Official answer
(2)
$\displaystyle 4$
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NEET (UG) 2011 Physics question, with the answer from NTA’s final answer key. Where our answers come from.