Physics-
General
Easy
Question
Curie-Weiss law is obeyed by iron
- At Curie temperature only
- At all temperatures
- Below Curie temperature
- Above Curie temperature
The correct answer is: Above Curie temperature
Iron is a ferromagnetic substance and ferromagnetic substance obeys Curie-Weiss law above its Curie temperature.
Related Questions to study
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If the 
curves of two samples of P and Q of iron are as shown below, then which one of the following statements is correct?
If the curves of two samples of P and Q of iron are as shown below, then which one of the following statements is correct?
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Among the following properties describing diamagnetism identify the property that is wrongly stated
Among the following properties describing diamagnetism identify the property that is wrongly stated
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Permanent magnet has properties retentivity and coercivity respectively
Permanent magnet has properties retentivity and coercivity respectively
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The magnetic susceptibility of a paramagnetic substance at 
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The magnetic susceptibility of a paramagnetic substance at C is 0.0060, then its value atC will be
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If a magnetic substance is kept in a magnetic field then which of the following substance is thrown out?
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Curie temperature is the one above which
Curie temperature is the one above which
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Which of the following is represented by the area enclosed by a hysteresis loop (B-H curve)?
Which of the following is represented by the area enclosed by a hysteresis loop (B-H curve)?
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For a paramagnetic material, the dependence of the magnetic susceptibility X on the absolute temperature is given as
For a paramagnetic material, the dependence of the magnetic susceptibility X on the absolute temperature is given as
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Shape of the graph of position 
time given in the figure for a body shows that
Shape of the graph of position time given in the figure for a body shows that
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As shown in the figure particle P moves from A to B and particle Q moves from C to D. Displacements for P and Q are and y respectively then
As shown in the figure particle P moves from A to B and particle Q moves from C to D. Displacements for P and Q are and y respectively then
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Here is a cube made from twelve wire each of length L, An ant goes from A to G through path A-B-C-G. Calculate the displacement.
Here is a cube made from twelve wire each of length L, An ant goes from A to G through path A-B-C-G. Calculate the displacement.
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As shown in the figure a particle starts its motion from 0 to A. And then it moves from. A to B. 
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As shown in the figure a particle starts its motion from 0 to A. And then it moves from. A to B. Is an are find the Path length
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Maths-
Assertion (A): 
is divisible by the square of14 where n is a natural number Reason (R): 
Assertion (A): is divisible by the square of14 where n is a natural number Reason (R):
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maths-
Assertion (A): Number of the dissimilar terms
in the sum of expansion 
is 206
Reason (R): Number of terms in the expansion of 
is n+1
Assertion (A): Number of the dissimilar terms
in the sum of expansion is 206
Reason (R): Number of terms in the expansion of is n+1
maths-General
