MCQ
All matter is made of:
- AEnergy
- BAtoms
- CElectrons
- DCompounds
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Two particles are placed at some distance from each other. If, keeping the distance between them unchanged, the mass of each of the two particles is doubled, the value of gravitational force between them will become:
$\frac{1}{4}\text{times}$
$\frac{1}{2}\text{times}$
$4\text{ times}$
$2\text{ times}$
A cell placed in solution swells up. The solution is: