MCQ
Force of friction depends on:
- ARoughness of surface.
- BSmoothness of surface.
- CInclination of surface.
- ✓All of these.
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| Column $A$ | Column $B$ | ||
| $(I)$ | Sowing | $[A]$ | Butachlor |
| $(II)$ | Irrigation | $[B]$ | Sickle |
| $(III)$ | Weeding | $[C]$ | Seed drill |
| $(IV)$ | Harvesting | $[D]$ | Drip system |
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Thermoplastics
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Thermosets
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$(i)$
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Soft
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Hard
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$(ii)$
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Can withstand heat
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Cannot withstand heat
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$(iii)$
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No cross linkages
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Cross linkages are present
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