MHT CET Physics question

A standing wave with number of loops is produced on a string fixed at both ends. Which one of the following statements is correct? [MHT-CET 2020]

(A)The particles at alternate antinodes vibrate in phaseCorrect
(B)The particles at all antinodes vibrate in phase
(C)All particles vibrate in phase
(D)Particles between two consecutive antinodes vibrate in phase

Answer: (A)

Solution

Antinodes are apart and a node lies between two consecutive antinodes, so neighbouring antinodes vibrate in opposite phase while alternate antinodes (a distance apart) vibrate in phase; (b) is wrong because adjacent

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Question ID VK-070589