Chapter 8, Problem 8A.7AE

Interpretation Introduction

Interpretation:

The angles at which nodal planes exist for a $\text{d}$ orbital with wavefunction proportional to $\cos \theta \sin \theta \cos \varphi$ have to be stated.

Concept introduction:

In quantum mechanics, the wavefunction is given by $\psi$.  The wavefunction contains all the information about the state of the system.  The wavefunction is the function of the coordinates of particles and time.

The nodal planes are the planes in which the probability to find electrons is zero.