Up to what maximum potential will a copper ball, remote from all other bodies, be charged…
Chemistry · NEET · NTA Exams — Structure of Atom
Up to what maximum potential will a copper ball, remote from all other bodies, be charged when irradiated by electromagnetic radiation of wavelength \(\lambda=140 \mathrm{~nm}\)? Work function of copper is 4.5 eV.
- 7.4 V
- 4.4 V
- 5.6 V
- 10.2 V
Answer
(B) 4.4 V
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