MCQ
Elasticity is due to:
- ADecrease of PE with separation between atoms/ molecules.
- BIncrease of PE with separation between atoms/ molecules.
- CAsymmetric nature of PE curve.
- DNone of the above.
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| $Column-I$ | $Column-II$ |
| $(A)$ Angle of projection | $(p)$ $20\,m$ |
| $(B)$ Angle of velocity with horizontal after $4\,s$ | $(q)$ $80\,m$ |
| $(C)$ Maximum height | $(r)$ $45^{\circ}$ |
| $(D)$ Horizontal range | $(s)$ $\tan ^{-1}\left(\frac{1}{2}\right)$ |