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(D) . Rydberg's constant $(R_H)$ has units of $cm^{-1}$ or $m^{-1}$, and wave number $(\bar{
u})$ also has units of $cm^{-1}$ or $m^{-1}$. Thus, this

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The radius of first Bohr orbit of hydrogen atom is $0.529 	imes 10^{-8} \ cm$

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(D) . Rydberg's constant $(R_H)$ has units of $cm^{-1}$ or $m^{-1}$, and wave number $(\bar{
u})$ also has units of $cm^{-1}$ or $m^{-1}$. Thus, this statement is correct.$B$. Lyman series corresponds to transitions to $n=1$, which falls in the ultraviolet region. This statement is correct.$C$. According to Bohr's postulate, angular momentum $mvr = \frac{nh}{2\pi}$. For the ground state $(n=1)$, angular momentum is $\frac{h}{2\pi}$. This statement is correct.$D$. The radius of the first Bohr orbit of the hydrogen atom is $0.529 	imes 10^{-8} \ cm$ (or $0.529 \ \mathring{A}$). The value given in the option $(2116 	imes 10^{-8} \ cm)$ is incorrect.

Which one of the following statements is not correct?

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