Assertion (A): In water, the value of the magnetic field decreases. Reason (R): Water is a diamagnetic substance.
Answer (1)
In this question, we examine the relationship between water's magnetic properties and the behavior of a magnetic field within it.
Assertion (A): In water, the value of the magnetic field decreases.
Reason (R): Water is a diamagnetic substance.
To determine if the assertion and reason are correct, let's understand the concepts:
Diamagnetism: Diamagnetic materials are those that create an opposing magnetic field in response to an external magnetic field. This effect is due to the material's electrons adjusting their orbits slightly under the influence of a magnetic field, producing an induced magnetic field in the opposite direction. As a result, diamagnetic materials weakly repel a magnetic field.
Water's Magnetic Properties: Water is indeed a diamagnetic substance. This means that when it is placed in a magnetic field, it will exert a very tiny opposing effect due to the induced magnetic field. Although this effect is weak, it confirms that water is diamagnetic.
Therefore, the assertion that "in water, the value of the magnetic field decreases" is supported by the reason that "water is a diamagnetic substance" since the diamagnetic properties of water cause it to slightly oppose the external magnetic field.
Conclusion: Both the assertion and the reason are correct, and the reason is the correct explanation of the assertion.
