Which one of the following statements is not | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(NONE) The unit of wave number $(\bar{
u})$ is $cm^{-1}$ or $m^{-1}$. Rydberg's constant $(R_H)$ also has the same units ($cm^{-1}$ or $m^{-1}$),

Vedclass · Accepted Answer

Rydberg's constant and wave number have same units.

Vedclass · Answer

(NONE) The unit of wave number $(\bar{
u})$ is $cm^{-1}$ or $m^{-1}$. Rydberg's constant $(R_H)$ also has the same units ($cm^{-1}$ or $m^{-1}$),so statement $A$ is correct.
The Lyman series corresponds to transitions to the $n=1$ energy level,which falls in the ultraviolet region,so statement $B$ is correct.
The angular momentum of an electron in an orbit is given by $mvr = \frac{nh}{2 \pi}$. For the ground state,$n=1$,so the angular momentum is $\frac{h}{2 \pi}$,so statement $C$ is correct.
The radius of the first Bohr orbit is $a_0 = 0.529 \ \mathring{A} = 0.529 	imes 10^{-8} \ cm$. This is also correct.
Since all statements are factually correct based on standard atomic theory,there is no incorrect statement among the given options.

Which one of the following statements is not correct?

Similar Questions

Rutherford's experiment on scattering of $\alpha-$particles showed for the first time that the atom has

If $(a + \sqrt{2} b \cos x)(a - \sqrt{2} b \cos y) = a^2 - b^2$,where $a > b > 0$,then $\frac{dx}{dy}$ at $(\frac{\pi}{4}, \frac{\pi}{4})$ is

During its life cycle,$Fasciola$ $hepatica$ (liver fluke) infects its intermediate host and primary host at the following larval stages,respectively:

The plates of a parallel plate capacitor are charged up to $100 \, V$. $A$ $2 \, mm$ thick plate is inserted between the plates. To maintain the same potential difference,the distance between the capacitor plates is increased by $1.6 \, mm$. The dielectric constant of the plate is:

Which one of the following items gives its correct total number?

Vedclass Test Series

Exam Paper Generator

Online Exam Module