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5. Magnetism and matter Physics - 5. Magnetism and matter

CBSE - STD 12 Science - Physics (CBSE - English Medium). 547 questions in this chapter.

Question types

5. Magnetism and matter question types

547 questions across 1 question group — pick any mix to generate a Physics paper with step-by-step answer keys.

547
Questions
1
Question groups
5
Question types
Sample Questions

5. Magnetism and matter questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:

$A$. hold the sheet there if it is magnetic.

$B$. hold the sheet there if it is non-magnetic.

$C$. move the sheet away from the pole with uniform velocity if it is conducting.

$D$. move the sheet away from the pole with uniform velocity if it is both, non-conducting and non-polar.

Choose the correct statement($s$) from the options given below:

  • ✓
    $A$ and $C$ only
  • B
    $A$, $C$ and $D$ only
  • C
    $C$ only
  • D
    $B$ and $D$ only

Answer: A.

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Q 2M.C.Q (1 Marks)1 Mark
An iron bar of length $L$ has magnetic moment $M$. It is bent at the middle of its length such that the two arms make an angle $60^{\circ}$ with each other. The magnetic moment of this new magnet is :
  • ✓
    $\frac{M}{2}$
  • B
    $2 M$
  • C
    $\frac{M}{\sqrt{3}}$
  • D
    $M$

Answer: A.

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Q 3M.C.Q (1 Marks)1 Mark
Match List-$I$ with List-$II$.

List-$I$ (Material) List-$II$ (Susceptibility $(x)$
$A$. Diamagnetic $I$. $\chi=0$
$B$. Ferromagnetic $II$. $ 0>\chi \geq-1$
$C$. Paramagnetic $II$I. $ x>1$
$D$. Non-magnetic $IV$. $0<\gamma<\varepsilon$ (a small positive number)

Choose the correct answer from the options given below

  • A
    $A-II, B-I, C-III, D-IV$
  • B
    $A-III, B-II, C-I, D-IV$
  • C
    $A-IV, B-III, C-II, D-I$
  • ✓
    $A-II, B-III, C-IV, D-I$

Answer: D.

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Q 5M.C.Q (1 Marks)1 Mark
An iron rod of susceptibility $599$ is subjected to a magnetising field of $1200\, Am ^{-1}$. The permeability of the material of the rod is 

$\left(\mu_{0}=4 \pi \times 10^{-7}\, T\, m\, A ^{-1}\right)$

  • A
    $2.4 \pi \times 10^{-7} \,T\, m\, A ^{-1}$
  • ✓
    $2.4 \pi \times 10^{-4} \,T\, m \,A ^{-1}$
  • C
    $8.0 \times 10^{-5}\, T\, m\, A ^{-1}$
  • D
    $2.4 \pi \times 10^{-5} \,T\, m\, A ^{-1}$

Answer: B.

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