EASY
9th CBSE
IMPORTANT
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When a fresh egg is put into a beaker filled with water, it sinks. When the same egg is put in a strong salty water, then it floats. Which of the following is the incorrect statement in this context?

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Important Questions on Sound

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Exercise 3>Q 28
When two balls, one of iron and the other of aluminium, are completely immersed in strong salty water, they undergo an equal loss in weight. This shows that iron and aluminium balls have:
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Exercise 3>Q 29
When two solids are put in two pans of a beam balance, they exactly balance each other in air. When the two solids are completely immersed in water along with pans of balance, then they no longer balance each other. Which of the following is the incorrect statement about these balls?
HARD
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 5 - Sound>Exercise 3>Q 30

The temperature-time graph obtained when hot water is allowed to cool resembles the graph given in one of the following figures. The correct figure is:

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