Sound travels in air if (a) particles of medium travel from one place to another (b) there is no moisture in the atmosphere (c) disturbance moves (d) both particles as well as disturbance travel from one place to another.
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
Answer is (c) disturbance moves Explanation:
Sound waves propagate by vibrating in its own position. Whereas disturbance created by vibration of particles moves from one place to another.
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