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A bar magnet is oscillating in the earth...

A bar magnet is oscillating in the earth's magnetic field with a period T. What happens to its period and motion if its mass is quadrupled

A

Motion remains simple harmonic with new period `=T//2`

B

Motion remains simple harmonic with new period`=2T`

C

Motion remains simple harmonic with new period `=4T`

D

Motion remains simple harmonic and the period stays nearly constant

Text Solution

Verified by Experts

The correct Answer is:
b
(b) 33.
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DISHA PUBLICATION-MAGNETISM AND MATTER-EXERCISE-1:CONCEPT BUILDER (TOPICWISE)
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  2. At a certain place the angle of dip is 30^(@) and the horizontal compo...

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  3. A bar magnet is oscillating in the earth's magnetic field with a perio...

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  4. Horizontal component of earth's field at a height of 1 m from the surf...

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  5. The earth's magnetic field lines resemble that of a dipole at the cent...

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  6. A current carryingcoil is placed with its axis perpendicular to N-S di...

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  7. The B-H curve (i) and (ii) shown in fig associated with

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  8. The mensicus of a liquid contained in one of the limbs of a narrow U-t...

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  9. If a diamagnetic solution is poured into a U-tube and one aem of this ...

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  10. The variation of magnetic susceptibility (chi) with temperature for a ...

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  11. If a diamagnetic substance is brought near north or south pole of a ba...

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  12. If mu(0) is absolute permeability of vacum and mu(r) is relative magn...

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  13. The ferromagnetic core of electromagnets should have

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  14. The material suitable for making electromagnets should have

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  15. The relative permeability of iron is 6000. Its magnetic susceptibilit...

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  16. Which of the following is not correct about relative magnetic permeab...

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  17. The basic magnetization curve for a feromagnetic materials is shown in...

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  18. When a piece of a ferromagnetic sobstance is put in a uniform magnetic...

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  19. The permanent magnet is made fron which one of the following substance...

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  20. Demagnetisation of magnets can be done by

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