List of top Physics Questions on atom structure models asked in MHT CET

The ratio of the total energy of the (2^{nd}) orbit electron for the hydrogen atom ((^{1}H)) to that of a helium ion ((He^{+})) is :

The ratio of the total energy of the (2^{nd}) orbit electron for the hydrogen atom ((^{1}H)) to that of a helium ion ((He^{+})) is :

The ratio of the total energy of the (2^{nd}) orbit electron for the hydrogen atom ((^{1}H)) to that of a helium ion ((He^{+})) is :

The ratio of wavelengths for transition of electrons from 2nd orbit to $1^{st}$ orbit of Helium $(He^{+})$ and Lithium $(Li^{++})$ is (Atomic number of Helium = 2, Atomic number of Lithium = 3)

Frequency of the series liit of Balmer series of hydrogen atom in terms of Rydberg's constant (R) and velocity of light (c) is