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JEE PHYSICS MCQ: MAGNETISM AND MATTER

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Application +4 | -1

The values of the apparent angles of dip in two planes at right angles to each other are

30^{\circ}

and

45^{\circ}

. Calculate the true value of the angle of dip at the place.

View answer and explanation

Correct option: A

26.6^{\circ}

Option A (

26.6^{\circ}

) is correct because the true angle of dip is calculated using the formula relating it to the apparent angles of dip in two perpendicular planes.

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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}}

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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