A magnetic needle suspended by a silk thread is vibrating in the earth – McqOptions

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1.	A magnetic needle suspended by a silk thread is vibrating in the earth's magnetic field. If the temperature of the needle is increased by 500°C, then [MNR 1994]
A.	The time period decreases
B.	The time period remains unchanged
C.	The time period increases
D.	The needle stops vibrating
Answer» D. The needle stops vibrating

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