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प्रश्न
Select the correct option:
A longitudinal wave consists of:
पर्याय
crest and trough in the medium
compression and rarefaction in the medium
both crest and trough in the medium and compression and rarefaction in the medium
neither crest and trough in the medium and compression and rarefaction in the medium
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उत्तर
compression and rarefaction in the medium
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