Q.

Collapsible balloon is inflated to a volume of 10L at a pressure of 1 atm. When the balloon is immersed to the bottom of a lake, its volume reduce to 1.25 L. Assuming atmospheric pressure to be equivalent to 10m column of water and no change in temperature, if the depth of the lake is x × 103 cm, what is the value of x?

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answer is 7.

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Collapsible balloon is inflated to a volume of 10L at a pressure of 1 atm. When the balloon is immersed to the bottom of a lake, its volume reduce to 1.25 L. Assuming atmospheric pressure to be equivalent to 10m column of water and no change in temperature, if the depth of the lake is x × 103 cm, what is the value of x?