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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 time period 2T

B

Motion remains simple harmonic with time period 4T

C

Motion remains simple harmonic and time period remains nearly constant.

D

In none of the above directions

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The correct Answer is:
A
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FIITJEE-MAGNETISM AND MATTER-ASSIGNMENT PROBLEMS OBJECTIVE : (LEVEL -I) (MULTI CHOICE SINGLE CORRECT)
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  2. vec(B), vec(H) and vec(I) are related according to the equation

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  3. When magnetic field at P and Q is same, then OP/OQ is equal to

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

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  5. Which among the four chi versus T graphs shown in the following figure...

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  6. Two identical short bar magnets, each having magnetic moment M, are pl...

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  7. A dip needle at a place is horizontal. The position of the plane will ...

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  8. A magnetic dipole with magnetic moment M is placed at right angles to ...

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  9. Before using tangent galvanometer for the measurement of current, why ...

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  10. The two I-H graphs A and B in the adjacent figure are for .

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  11. Domain formation is the necessary feature of

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  12. According to Curie's law, the magnetic susceptibilty of a paramagneti...

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  13. Two short magnets of dipole moment M each are placed crossed at 90^(@)...

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  14. The relative permeability is represented by mu(r) and susceptibility i...

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  15. The magnet field lines due to a bar magnet are correctly shown in

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  16. The susceptibility of a diamagnetic substance is

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  17. The angle of dip at a certain place is 30^(@). If the horizontal compo...

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  18. A bar has a magnetic moment equal to 5xx10^(-5) weberxxm. It is suspen...

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  19. A magnet has time period of oscillations T in earth's magnetic field a...

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  20. A magnet of magnetic moment 50 hat(i) A-m^(2) is placed along the x-ax...

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