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7. gravitation — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics7. gravitation1 Mark
MCQ
Two objects of equal masses placed at certain distance from each other attracts each other with a force of $F$. If one-third mass of one object is transferred to the other object, then the new force will be
  • A
    $\frac{2}{9}F$
  • B
    $\frac{16}{9}F$
  • ✓
    $\frac{8}{9}F$
  • D
    $F$
✓

Answer

Correct option: C.
$\frac{8}{9}F$
c
$F =\frac{ Gm ^{2}}{ r ^{2}}$

$F ^{\prime}=\frac{ G \left(\frac{4 m }{3}\right) \times\left(\frac{2 m }{3}\right)}{ r ^{2}}$

$F ^{\prime}=\frac{8}{9} F$

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