The magnetic field at a point $x $ on the axis of a small bar magnet is equal to the field at a point $ y $ on the equator of the same magnet. The ratio of the distances of $x$ and $y$ from the centre of the magnet is
The magnetic field at a point $x $ on the axis of a small bar magnet is equal to the field at a point $ y $ on the equator of the same magnet. The ratio of the distances of $x$ and $y$ from the centre of the magnet is
- A
${2^{ - 3}}$
- B
${2^{ - 1/3}}$
- C
${2^3}$
- D
${2^{1/3}}$
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