Embibe Experts Solutions for Chapter: Structure of Atom, Exercise 1: KCET (UG) 2020

With regard to photoelectric effect, identify the CORRECT statement among the following:

The number of angular and radial nodes in $3\mathrm{p}$ orbital respectively are

Two particles $\mathrm{A}$ and $\mathrm{B}$ are in motion. If the wavelength associated with $\mathrm{A}$ is $33.33 \mathrm{nm}$, the wavelength associated with $\mathrm{B}$ whose momentum is $\frac{1}{3}\mathrm{rd}$ of $\mathrm{A}$ is

The orbital nearest to the nucleus is