Chapter 12, Problem 12A.8AE

(i)

Interpretation Introduction

Interpretation:

The factor by which the magnetic field of ${}^{\text{1}}\text{H}$ nuclei is increased as the relative population increased by $5$ factor, has to be stated.

Concept introduction:

The frequency of electromagnetic radiation is given by resonance condition.  This resonance condition gives an equation that relates the frequency of nuclei with the magnetic field.  The frequency of nuclei is given by the equation as shown below.

  $v=\frac{{\gamma }_{\text{N}}{B}_o}{2\text{π}}$

The above-stated frequency is known as the Larmor precession frequency.  Larmor precession is a phenomenon in which the magnetic moment of nuclei precesses about an external magnetic field.

(ii)

Interpretation Introduction

Interpretation:

The factor by which the magnetic field of ${}^{\text{13}}\text{C}$ nuclei is increased as the relative population increased by $5$ factor, has to be stated.

Concept introduction:

As mentioned in the concept introduction in part (i).