A magnetic substance has suceptibility `-0*05` at `300K`. The magnetic susceptibility of the substance at `600K` will be

Options

A. `-0*025`
B. `-0*01`
C. `-0*05`
D. `-0*0125`

Explanation

To solve the problem, we need to analyze the magnetic susceptibility of the given substance at two different temperatures. Here’s a step-by-step solution:

### Step 1: Understand the given data
We are provided with the magnetic susceptibility (χ) of a magnetic substance at a temperature of 300 K, which is -0.05.

### Step 2: Identify the type of magnetic material
The negative value of susceptibility indicates that the material is diamagnetic. Diamagnetic materials have a susceptibility that is negative and typically do not depend significantly on temperature.

### Step 3: Analyze the temperature dependence of susceptibility
For diamagnetic materials, the susceptibility is generally considered to be constant over a range of temperatures, meaning it does not change significantly with temperature.

### Step 4: Apply the concept to find susceptibility at 600 K
Since the susceptibility of diamagnetic materials does not depend on temperature, we can conclude that the susceptibility at 600 K will be the same as that at 300 K.

### Step 5: State the final answer
Thus, the magnetic susceptibility of the substance at 600 K will also be -0.05.

### Final Answer:
The magnetic susceptibility of the substance at 600 K will be **-0.05**.

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