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7 questions · timed · auto-graded

Question 11 Mark
Density in kg $m^{-3}$ = ............ × density in g $cm^{-3}$
Answer
Density in kg $m^{-3} = 1000 \times $ density in g $cm^{-3}$
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Question 51 Mark
A piece of wood is held under water. The upthrust on it will be ___________ the weight of the wood piece.
Answer
A piece of wood is held under water. The upthrust on it will be more than the weight of the wood piece.
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Question 61 Mark
An empty tin container with its mouth closed has an average density equal to that of a liquid. The container is taken 2 m below the surface of that liquid and is left there. Then the container will ____________ .
Answer
An empty tin container with its mouth closed has an average density equal to that of a liquid. The container is taken 2 m below the surface of that liquid and is left there. Then the container will remain at the same position .
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Question 71 Mark
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
Answer
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if Both have equal volumes .
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fill in the blanks. - PHYSICS STD 9 Questions - Vidyadip