Does Plywood Absorb Sound?
Which of the following media allow the transmission of sound waves through them?
- I. Air
- II. Liquid
- III. Solids
- A. I & II only
- B. I & III only
- C. II & III only
- D. I, II & III
Sound generally require material medium for propagation. All matter (or material) which include solid, liquid, and gas allow sound to transmit through them. Sound cannot be transmitted through empty space (or vacuum) only.
Now for the right answer to the above question:
- Option A is incorrect.
- Option B is incorrect.
- C is incorrect.
- D is the correct answer.
You may please note these/this:
- All matter allow sound energy to transmit through them.
- As long as it is a matter, whether solid, liquid, or gas, sound can travel through. Although it travels fast in gas, faster in liquid, and fastest in solids, yes you heard me, sound travels fastest in solids.
- Vacuums do not allow sound to pass through them.
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/culled from 2019 JAMB-UTME physics question 33/