Magnetism and Matter NEET PYQs (1995–2024)

Solved Magnetism and Matter PYQs

3 recent questions with answers. The full set of 50 is free to practise.

1. NEET 2024EasyTorque, Work and Energy in a Magnetic Field
   Q1

   The magnetic potential energy, when a bar magnet of magnetic moment $\overrightarrow{m}$ is placed perpendicular to the magnetic field $\overrightarrow{B}$ is

   • A$-\frac{mB}{2}$
   • BZero
   • C$-mB$
   • D$mB$

   Show answer & solution

   Correct answer: (B)

   Potential energy stored in external magnetic field is given by $U=-\overrightarrow{m}\cdot \overrightarrow{B}$.
   
   Angle between $\overrightarrow{m}$ and $\overrightarrow{B}$ is $90^{\circ }$
   
   $$\therefore U=-mB\cos 90^{\circ }=0$$
2. NEET 2024EasyMagnetic Properties of Materials
   Q2

   The incorrect relation for a diamagnetic material (all the symbols carry their usual meaning and $\epsilon$ is a small positive number) is

   • A$\mu <{\mu }_0$
   • B$0\le {\mu }_r<1$
   • C$-1\le \chi <0$
   • D$1<{\mu }_r<1+\epsilon$

   Show answer & solution

   Correct answer: (D)

   For diamagnetic material,
   
   $$0\le {\mu }_r<1$$
   
   $$\chi ={\mu }_r-1\Rightarrow -1\le \chi <0$$
   
   $${\mu }_r=\frac{\mu }{{\mu }_0}\Rightarrow \mu <{\mu }_0\left(\because {\mu }_r<1\right)$$
3. NEET 2022EasyOther
   Q3

   The dimensions $\left[ML{T}^{-2}{A}^{-2}\right]$ belong to the

   • AMagnetic flux
   • BSelf inductance
   • CMagnetic permeability
   • DElectric permittivity

   Show answer & solution

   Correct answer: (C)

   Dimensional formula of magnetic permeability is $\left[ML{T}^{-2}{A}^{-2}\right]$

Topic-wise question count

Where NEET has asked from Magnetism and Matter, most frequent first.

• Magnetic Properties of Materials18
• Torque, Work and Energy in a Magnetic Field12
• Earth's Magnetism and Magnetic Instruments9
• Magnetic Dipole Moment7
• Other4

Year-wise Magnetism and Matter questions in NEET

Number of questions from this chapter in each year's paper(s).