PYQSide ExamsMy practice

Magnetism and Matter · Question 34

AIPMT 2002MCQMedium📈 Topic in 25% papers+4−1
1

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way that their similar poles are same side then its time period of oscillation is T1. Now the polarity of one of the magnets is reversed then time period of oscillation is T2, then

  1. T1 < T2
  2. T1 = T2
  3. T1 > T2
  4. T2 =

Answer

(1) T1 < T2

Solution

Time period of a magnet system in field B: T = 2 IMB

Same geometry total moment of inertia = 2I in both cases.

Similar poles on the same side: M1 = M + 2M = 3M

One magnet reversed: M2 = 2M - M = M

T1T2 = M2M1 = 1 3

T1 < T2

Answer: (1)

AIPMT 2002

Keep practising — Magnetism and Matter

2

Among which the magnetic susceptibility does not depend on the temperature?

  1. diamagnetism
  2. paramagnetism
  3. ferromagnetism
  4. ferrite
AIPMT 2001
3

Tangent galvanometer is used to measure

  1. potential difference
  2. current
  3. resistance
  4. charge
AIPMT 2001

All Magnetism and Matter PYQs →

PDFDownload Magnetism and Matter PYQs as PDF Free, with answer key and a QR code to every solution — print it or study offline⬇
All NEET Physics chapters
Class 11Units and MeasurementsMotion in a Straight LineMotion in a PlaneLaws of MotionWork, Energy and PowerSystem of Particles and Rotational MotionGravitationMechanical Properties of SolidsMechanical Properties of FluidsThermal Properties of MatterThermodynamics (Physics)Kinetic TheoryOscillationsWaves
Class 12Electric Charges and FieldsElectrostatic Potential and CapacitanceCurrent ElectricityMoving Charges and MagnetismMagnetism and MatterElectromagnetic InductionAlternating CurrentElectromagnetic WavesRay Optics and Optical InstrumentsWave OpticsDual Nature of Radiation and MatterAtomsNucleiSemiconductor ElectronicsExperimental Skills (Physics)