MCQ
In gravitational force:
- AThere is mutual force of attraction between any two objects by virtue of their masses.
- BIt is a universal force.
- CIt causes formation and evolution of stars, galaxies and galactic clusters.
- ✓All of the above.
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$STATEMENT- 2$ For every action there is an equal and opposite reaction.
$\left[\right.$ Take $\left.g =10\,m / s ^{2}\right]$
| Measurement condition | Main scale reading | Circular scale reading |
| Two arms of gauge touching each other without wire | $0$ division | $4$ division |
| Attempt-$1$: With wire | $4$ division | $20$ division |
| Attempt-$2$: With wire | $4$ division | $16$ division |
What are the diameter and cross-sectional area of the wire measured using the screw gauge?