CBSE /Class 9
Science MCQ Based On Sound introduction
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CBSE Class 9 Science Sound introduction
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Read all the options carefully.
Sound waves can travel through a medium like solid, liquid or gas.
use the formula of wavelength.
Speed can be defined as total distance divided by total time.
What is the common term for it?
It produces sensation of hearing.
It is a space that is completely empty of all substances.
Frequency is defined as the number of waves produced in one second.
This region is created when a vibrating object moves backward.
Sound is a longitudinal wave and a mechanical wave.
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