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JEE • PHYSICS • MAGNETISM AND MATTER

Magnetism and matter practice · Easy

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Practice format and chapter quiz

These sets use single-correct-answer MCQs. They do not cover every JEE Main or JEE Advanced question format and are not full-length mock papers.

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1 Easy

1 of 9

Understanding +4 | -1

A magnetic needle kept in a non-uniform
magnetic field, experiences

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Correct option: C

both force and torque

Option C (both force and torque) is correct because a magnetic needle in a non-uniform magnetic field experiences both due to unequal forces on its poles.

2 Easy

2 of 9

Understanding +4 | -1

The magnetic induction and magnetising field intensity in a sample of magnetic material are

\mathrm{B}

and

\mathrm{H}

respectively. The magnetic susceptibility of the material is:

View answer and explanation

Correct option: B

\frac{\mathrm{B}}{\mu_0 \mathrm{H}}-1

Option B is correct because magnetic susceptibility is related to B and H by the formula

\chi_m = \frac{{B}}{{\mu_0 H}} - 1

3 Easy

3 of 9

Understanding +4 | -1

When a ferromagnetic substance is heated to a temperature above its Curie temperature, it:

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Correct option: A

Behaves like a paramagnetic substance

Option A (Behaves like a paramagnetic substance) is correct because above the Curie temperature, ferromagnetic materials lose their spontaneous magnetization and become paramagnetic.

4 Easy

4 of 9

Understanding +4 | -1

Assertion (A) : The magnetic field lines are
continuous and form closed loops.
Reason (R) : Magnetic monopole does not exist.
The correct option among the following is

View answer and explanation

Correct option: A

(A) is true and (R) is the correct explanation
for (A)

Option A ((A) is true and (R) is the correct explanation\nfor (A)) is correct because the continuous and closed-loop nature of magnetic field lines is a direct consequence of the non-existence of magnetic monopoles.

5 Easy

5 of 9

Understanding +4 | -1

A magnet is dropped down in infinitely long vertical
copper tube.

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Correct option: A

The magnet moves with continuously increasing
velocity and ultimately acquires a constant
terminal velocity

The correct answer is that the magnet moves with continuously increasing velocity and ultimately acquires a constant terminal velocity due to eddy currents opposing its motion.

6 Easy

6 of 9

Remembering +4 | -1

The magnet can be completely demagnetized by

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Correct option: D

A reverse field of appropriate strength

Option D (A reverse field of appropriate strength) is correct because applying a reverse magnetic field of the correct magnitude can disrupt the alignment of magnetic domains, leading to demagnetization.

7 Easy

7 of 9

Understanding +4 | -1

The dimensions of B is

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Correct option: A

\left[ {{M^1}{T^{ - 2}}{A^{ - 1}}} \right]

Option A,

\left[ {{M^1}{T^{ - 2}}{A^{ - 1}}} \right]

, is the correct dimension for magnetic field B, derived from the Lorentz force equation.

8 Easy

8 of 9

Application +4 | -1

A dip needle vibrates in the vertical plane perpendicular to magnetic meridian. The time period of vibration is found to be 2 s. The same needle is then allowed to vibrate in the horizontal plane and time period is again found to be 2s. Then the angle of dip is

View answer and explanation

Correct option: C

^ \circ

Option C (45

^ \circ

) is correct because the time periods are equal, implying the horizontal and vertical components of the magnetic field are equal.

9 Easy

9 of 9

Analyzing +4 | -1

Assertion: If a unit north pole rotates around a current carrying wire then work has to be done.
Reason: Magnetic field produced by current is always non - conservative in nature.

View answer and explanation

Correct option: A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

Option A is correct because the work done is non-zero due to the non-conservative nature of the magnetic field produced by the current-carrying wire.

Revision notes and key takeaways

Review MAGNETISM AND MATTER in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 9 single-correct-answer MCQs on MAGNETISM AND MATTER.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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