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A bar magnet of magnetic moment M and po...

A bar magnet of magnetic moment M and pole strength m is broken in two equal part along the magnetic axis . The magnetic moment and pole strength of each part are

A

`(M)/(2) , (m)/(2)`

B

`(M)/(2)` , m

C

`M , (m)/(2)`

D

M , m

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The correct Answer is:
A
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AAKASH INSTITUTE-MAGNETISM AND MATTER -Assignment Section - B Objective Type Questions (One option is correct)
  1. Which of the following is the most suitable material for making perman...

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  2. The magnetism of a bar magnet is due to

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  3. A bar magnet of magnetic moment M and pole strength m is broken in two...

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  4. The magnetic field lines inside a bar magnet

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  5. At a certain place , horizontal component of earth's field is sqrt3 ti...

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  6. The material suitable for making electromagnets should have

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  7. Magnetic susceptibility of diamagnetic substances depends upon the abs...

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  8. When a ferromagnetic material is heated above its Curie temperature , ...

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  9. The true value of angle of dip at a place is 60^(@) . The apparent ang...

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  10. Two identical bar magnets of magnetic moment M each are inclined to 60...

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  11. A bar magnet of magnetic moment M is bent in the form of quadrant of c...

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  12. A thin rectangular magnet suspended freely has a period of oscillation...

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  13. A magnetic needle lying parallel to a magnetic field requires W units ...

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  14. The pole strength of a bar magnet is 48A-m and the distance between it...

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  15. Magnetic intensity for an axial point due to a short bar magnet of mag...

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  16. A small rod of bismuth is suspended freely between the poles of a stro...

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  17. A magnetic needle is kept in a non uniform magnetic field . It experie...

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  18. The magnet of vibration magnetometer is heated so as to reduce its mag...

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  19. Two bar-magnets having their moment of inertia in the ratio 2: 3 oscil...

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  20. A small magnetic needle performs 10 oscillations/minute in the earth's...

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