A magnet makes 40 oscillations per minute ata place having magnetic field intensity B_{H}=0.1\times10^{-5} . At another place, it takes 2.5 {s} to complete one vibration. The value of the earth's horizontal field at the place

Correct Answer is : 0.36×10−6T

Manipal Entrance Test 2014 Physics Paper

Question : 34 of 60

Marks: +1, -0

A magnet makes 40 oscillations per minute ata place having magnetic field intensity BH=0.1×10−5. At another place, it takes 2.5s to complete one vibration. The value of the earth's horizontal field at the place

0.25×10−6T
0.36×10−6T
0.66×10−8T
1.2×10−6T

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