Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
4.6k views
in Optics by (41.1k points)
closed by

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 : -

(A) Both statement – I and statement -II are true. 

(B) Both statement – I and Statement – II are false. 

(C) Statement – I is true but statement – II is false. 

(D) Statement-I is false but Statement-II is true.

1 Answer

+1 vote
by (44.6k points)
selected by
 
Best answer

(A) Both statement – I and statement -II are true

According to curie's law, magnetic susceptibility is inversely proportional to temperature for a fixed value of external magnetic field i.e. \(\chi\) = C/T.

The same is applicable for ferromagnet & the relation is given as \(\chi=\frac{C}{T-T_C}\)(TC is curie temperature.)

Diamagnetism is due to non-cooperative behaviour of orbiting electrons when exposed to external magnetic field.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...