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The susceptibility of a magneitc materia...

The susceptibility of a magneitc material is x at `127^(@)c` at what temperature its susceptibility will be reduced to half of its original value ?

A

`327^(@)C`

B

`427^(@)C`

C

`527^(@)C`

D

`627^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
From curie 's law `X prop (1)/(T)`
`therefore (X_(2))/(X_(1))=(T_(1))/(T_(2))` but it is given that `(X_(2))/(X_+(1))=1/2`
and `T_(1)=273+127 =400k`
`therefore T_(2)=800k =(800-273)=527^(@)C`
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