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UPSC NDA II 2010 General Ability Paper

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PART B : GENERAL KNOWLEDGE

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Question : 54

Total: 150

Magnetism of a bar magnet can be destroyed if it is :
1. kept in the magnetic meridian.

2. placed in a direction opposite that of the Earth's horizontal intensity.
3. heated to a temperature known as Curie temperature.
Select the correct answer using the code given below:

1 and 3 only
2 only
2 and 3 only
1, 2 and 3

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