AP EAMCET202524 May 2025Morning ShiftPhysicsMagnetic Properties of MatterActual
A sample of paramagnetic salt contains 2 10²⁴ atomic dipoles each of dipole moment 1.5 10⁻²³ JT ⁻¹ . The sample is placed under homogeneous magnetic field of 0.6 T and cooled to a temperature 4.2 K. The degree of magnetic saturation achived is 20 % . Then total dipole moment of the sample for a magnetic field of 0.9 T and a temperature of 2.8 K is
Options
- A4.5 ~J ~T ⁻¹
- B13.5 ~J ~T ⁻¹
- C0.64 ~J ~T ⁻¹
- D7 ~J ~T ⁻¹
Correct answer
B. 13.5 ~J ~T ⁻¹
Step-by-step solution
No Solution