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Magnetism and Matter Physics - Magnetism and Matter

Rajasthan Board (RBSE) - STD 12 Science - Physics (Rajasthan - English Medium). 36 questions in this chapter.

Question types

Magnetism and Matter question types

36 questions across 4 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

36
Questions
4
Question groups
5
Question types
Sample Questions

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
The value of magnetic potential at a distance $r$ from a pole strength $m$ is :
  • ✓
    $\frac{\mu_0 m}{4 \pi r}$
  • B
    $\frac{\mu_0 m}{4 \pi r^2}$
  • C
    $\frac{\mu_0 m}{4 \pi r^3}$
  • D
    zero

Answer: A.

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Q 3M.C.Q (1 Marks)1 Mark
On dividing any magnet of magnetic moment (M) parallel to its length into n equal pieces, the moment of each piece will be :
  • ✓
    $\frac{ M }{n}$
  • B
    $\frac{ M }{n^2}$
  • C
    $\frac{ M }{2 n}$
  • D
    $M \times n$

Answer: A.

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Q 4M.C.Q (1 Marks)1 Mark
The angle between magnetic meridian and geographical meridian is called :
  • A
    angle of dip
  • ✓
    angle of declination
  • C
    horizontal component of magnetic field
  • D
    criticle angle

Answer: B.

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Q 5M.C.Q (1 Marks)1 Mark
If $\delta$ is the angle of dip at a place, then expression for $\tan \delta$ is :
  • ✓
    $B _{ V } / B _{ H }$
  • B
    $B _{ H } / B _{ V }$
  • C
    $B _{ V } B _{ H }$
  • D
    $\left(\frac{B_V}{B_H}\right)^2$

Answer: A.

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Q 175 Marks Questions5 Marks
Define magnetic elements of earth's magnetic field. Establish the relation between them.
On suspending a magnet at an angle of 30° with magnetic meridian it makes an angle of 45° with horizontal. Calculate the correct value of angle of dip.
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