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JEE PHYSICS MCQ: MAGNETISM AND MATTER

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The susceptibility of a paramagnetic material is

K

at 27

^ \circ C

. At what temperature will its susceptibility be

K/2

?

View answer and explanation

Correct option: D

327

^ \circ C

Option D (327

^ \circ C

) is correct because the susceptibility of a paramagnetic material is inversely proportional to its absolute temperature.

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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

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s. One of the magnets is removed and if the other magnet oscillates in the same field , then the time period in second is The relative permeability of a substance

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

\mu_{\mathrm{f}}

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