MCQ
A double convex air bubble in water would behave as a.
- AConvergent lens
- BCircle
- ✓Divergent lens
- DPane mirror
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Column I
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Column II
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$P.$
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A synthetic fibre also called as artificial silk
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$(i)$
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Spandex
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$Q.$
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A synthetic fibre also known as lycra
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$(ii)$
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Acrylic
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$R.$
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A synthetic fibre that closely resembles wool
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$(iii)$
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Rayon
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$S.$
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The first true synthetic fibre
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$(iv)$
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Nylon
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