MCQ
Roads are banked on curves so that
- ✓The speeding vehicles may not fall outwards
- BThe frictional force between the road and vehicle may be decreased
- CThe wear and tear of tyres may be avoided
- DThe weight of the vehicle may be decreased
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(Sp. heat of water $1\,cal/gm$, Specific heat of ice $= 0.5\,cal/g\,^oC$ , letent heat of fusion $= 80\,cal/g$ )

