- Exam
- JEE Main
- Year
- 2022
- Date
- 25 June
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Magnetic Properties of Matter
JEE Main 2022 · 25 June · Evening Shift · Physics · Magnetic Properties of Matter
Given below are two statements : Statement - I : Susceptibilities...
Given below are two statements :
Statement - I : Susceptibilities of paramagnetic and ferromagnetic substances increase with decrease in temperature.
Statement - II : Diamagnetism is a result of orbital motions of electrons developing magnetic moments opposite to the applied magnetic field.
Choose the correct answer from the options given below
Options
- ABoth Statement - I and Statement - II are true.
- BBoth Statement - I and Statement - II are false.
- CStatement - I is true but Statement - II is false.
- DStatement- I is false but Statement - II is true.
Correct answer
A. Both Statement - I and Statement - II are true.
Step-by-step solution
Statement-I is true as susceptibility of ferromagnetic and paramagnetic materials is inversely related to temperature, so it increases with decrease in temperature.
Statement-II is also true as because of orbital motion of electrons, the diamagnetic material is able to oppose external magnetic field. Once an external magnetic field is applied, diamagnetic materials develop an induced magnetic field opposite to this field and thus are repelled by the field.