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MHT CET Physics question

PhysicsExperimental SkillsMHT CET

While measuring the speed of sound by performing a resonance column experiment, a student gets the first resonance condition at a column length of 18 cm during winter. Repeating the same experiment during summer, she measures the column length to be cm for the second resonance. Then

Answer: (B)

Solution

In winter the first resonance is cm so the second is at cm; in summer (and hence ) is

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Question ID VK-070335