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प्रश्न
- Assertion (A): Diamagnetic substances exhibit magnetism.
- Reason (R): Diamagnetic materials do not have a permanent magnetic dipole moment.
पर्याय
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Both Assertion (A) and Reason (R) are true and Reason (R) is NOT the correct explanation of Assertion (A).
Assertion (A) is true and Reason (R) is false.
Assertion (A) is false and Reason (R) is also false.
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उत्तर
Assertion (A) is true and Reason (R) is false.
Explanation:
Diamagnetic material does not have permanent dipole moment but it can exhibit magnetism. Hence assertion is true and reason is false.
संबंधित प्रश्न
In what way is the behaviour of a diamagnetic material different from that of a paramagnetic, when kept in an external magnetic field?
The relative magnetic permeability of a magnetic material is 800. Identify the nature of magnetic material and state its two properties.
The earth’s field departs from its dipole shape substantially at large distances (greater than about 30,000 km). What agencies may be responsible for this distortion?
Why is diamagnetism, in contrast, almost independent of temperature?
What kind of ferromagnetic material is used for coating magnetic tapes in a cassette player, or for building ‘memory stores’ in a modern computer?
An ammeter of resistance R gives a full-scale deflection when a current of 2 A passes through it. If it is measured with a maximum current of 10 A, the required shunt is ______.
Which of the following cannot modify an external magnetic field as shown in the figure?
How do paramagnetic substances respond to a magnetic field?
In the small-arrows analogy for ferromagnets, when does the total effect become strong?
