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in Physics by (25.2k points)
The wavelength of light emitted from second orbit to first orbits in a hydrogen atom is
A. `1.215 xx 10^(-7) m`
B. `1.215 xx 10^(-5)m`
C. `1.215 xx 10^(-4) m`
D. `1.215 xx 10^(-3) m`

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