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JEE PHYSICS MCQ: MAGNETISM AND MATTER

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Consider a short magnetic dipole of magnetic length 10 cm. Its geometric length is

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Correct option: A

12 cm

Option A (12 cm) is correct because the geometric length of a magnet is approximately 6/5 times its magnetic length.

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Curie temperature is the one above which A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is

{2^{5/4}}

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\mu_{\mathrm{d}}, \mu_{\mathrm{p}}

\mu_{\mathrm{f}}

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