Question

Compressions, opposite, longitudinal)
---...--. are regions where particles are crowded together. Here, density as well as pressure is
high. ............... are regions where particles are spread apart. Here, density as well as pressure is low.
The direction in which a sound wave is .............., make equal angles with the normal. The point of
incidence, the normal, the incident wave and the reflected wave lie in the same plare. The incident and
reflected sound waves are on the ............... sides of the normal. During transmission of sound waves, the
individual particles of the medium move in a direction ............... to direction of propagation of disturbance.
Hence, sound waves are said to be ............... waves. )
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Answer 1

Answer:

compressions ,opposite, longitudinal, opposite, compressions, longitudinal

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