Which of the following point in Figure 2 most accurately represents the nodal surface as shown in Figure 1

The wave numbers of three spectral lines of H atom are considered. Identify the set of spectral lines belonging to Balmer series.
( $R=$ Rydberg...

Two positively charged particles and have been accelerated across the same potential difference of 200 keV as shown below.

The wavelength of spectral line obtained in the spectrum of $\mathrm{Li}^{2+}$ ion, when the transition takes place between two levels whose sum is 4 and...

The wavelength of photon ' $A$ ' is 400 nm . The frequency of photon ' $B$ ' is $10^{16} \mathrm{~s}^{-1}$. The wave number of...

The hydrogen spectrum consists of several spectral lines in Lyman series $\left(\mathrm{L}_1, \mathrm{~L}_2, \mathrm{~L}_3 \ldots ; \mathrm{L}_1\right.$ has lowest energy among Lyman series). Similarly it...

The work functions of two metals $\left(M_A\right.$ and $\left.M_B\right)$ are in the $1: 2$ ratio. When these metals are exposed to photons of energy 6...

Identify the INCORRECT statements from the following:
A. Notation ${ }_{12}^{24} \mathrm{Mg}$ represents 24 protons and 12 neutrons.
B. Wavelength of a radiation of frequency...

Given, (A) $\mathrm{n}=5, \mathrm{~m}_{\ell}=-1$ (B) $\mathrm{n}=3,1=2, \mathrm{~m}_{\ell}=-1, \mathrm{~m}_{\mathrm{s}}=+\frac{1}{2}$ The maximum number of electron(s) in an atom that can have the quantum numbers as given in...

Which of the following statements regarding the energy of the stationary state is true in the following one - electron systems ?