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Question
An electron in an atom initially has an energy 5.5 eV above the ground state energy. It drops to a state with energy 3.2 eV above the ground state energy and emits a photon in the process. The wave associated with the photon has a wavelength of:
A) 5.4 x10-7m
B) 3.0 x10-7m
C) 1.7x 10-7 m
D) 1.2x10-7m
E) 1.0x10-7 m
Answer
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