(a) Whi are wide wooden sleepers kept below railway lines? (b) Whi doe – InterviewSolution

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1.	(a) Whi are wide wooden sleepers kept below railway lines? (b) Whi does a balloon not collapse under atmospheric pressure?
Answer» (a) To reduce pressure on the railway lines and to prevent them from sinking into ground. (b) Because the pressure of the gas inside the balloon balances the atmospheric pressure.

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