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JEE Advanced 2020 Full Test 1 Paper 2

Question : 10

Total: 54

Mark the correct statement(s).

when a sound wave strikes a wall, the compression pulse is reflected as compression pulse.
when a sound wave strikes a wall, the compression pulse is reflected as rarefaction pulse.
when a sound wave is coming out after passing through a narrow pipe, then reflection would be there at open end.
when a sound wave is coming out after passing through a narrow pipe, then compression pulse is reflected as rare fraction pulse.

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