Two points, P and Q

PHYSICS · Single correct · CBSE · Physics · Magnetism and Matter · Magnetism and Matter

Problem

Two points, P and Q, lie on the axial line of the same bar magnet at distances

0.50\,\text{m}

and

1.00\,\text{m}

, respectively, from the magnet’s center. Which of the following best describes the ratio

\dfrac{B_{\!P}}{B_{\!Q}}

of the magnitudes of the magnetic field at these points? (a) 4 (b) 8 (c) 16 (d) 2