MCQOPTIONS
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MCQOPTIONS
| 1. |
A magnet makes 40 oscillations per minute at a place having magnetic field intensity of\[0.1\times {{10}^{-5}}\,T\]. At another place, it takes 2.5 sec to complete one vibration. The value of earth's horizontal field at that place is |
| A. | \[0.25\times {{10}^{-6}}\,T\] |
| B. | \[0.36\times {{10}^{-6}}\,T\] |
| C. | \[0.66\times {{10}^{-8}}\,T\] |
| D. | \[1.2\times {{10}^{-6}}\,T\] |
| Answer» C. \[0.66\times {{10}^{-8}}\,T\] | |