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Magnetism — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsMagnetism1 Mark
MCQ
At two places $A$ and $B$ using vibration magnetometer, a magnet vibrates in a horizontal plane and its respective periodic time are $2$ sec and $3 \sec$ and at these places the earth's horizontal components are $H_A$ and $H_B$ respectively. Then the ratio between $H_A$ and $H_B$ will be
  • ✓
    $9 : 4$
  • B
    $3 : 2$
  • C
    $4 : 9$
  • D
    $2 : 3$
✓

Answer

Correct option: A.
$9 : 4$
$9 : 4$

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