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Magnetism — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetism1 Mark
MCQ
Using a bar magnet P, a vibration magnetometer has time period 2seconds. When a bar Q (identical to P in mass and size) is placed on top of P, the time period is unchanged. Which of the following statements is true
  • A
    Q is of non-magnetic material
  • ✓
    Q is a bar magnet identical to P, and its north pole placed on top of P's north pole
  • C
    Q is of unmagnetized ferromagnetic material
  • D
    Nothing can be said about Q's properties
✓

Answer

Correct option: B.
Q is a bar magnet identical to P, and its north pole placed on top of P's north pole
 Q is a bar magnet identical to P, and its north pole placed on top of P's north pole

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