Rydberg is : (A) also called Rydberg constant and is a universal constant (B) unit of wavelength...

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Rydberg is :
(A) also called Rydberg constant and is a universal constant
(B) unit of wavelength and one Rydberg equal to \( 1.097 \times 10^{-7} \mathrm{~m}^{-1} \)
(C) unit of wave number and one Rydberg equal to \( 1.097 \times 10^{7} \mathrm{~m}^{-1} \)
(D) unit of energy and one Rydberg equal to \( 13.6 \mathrm{eV} \)
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