The boys are communicating with each other by stretching a string passing through a hole punched in the bottom of each of two tin cans. The physical principle employed is that sound travels
mainly through air
fainter in stretched string
faster through gases than in solids and liquids
with greater ease through a string than in air
none of the above is correct
Explanation
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Because the molecules in a solid are packed much closer together (more densely), vibrations are passed along much more easily from one molecule to the next. As a result, sound waves travel faster through solids (such as a length of string) than through gases (like air).
u guys i think the ans is d because sound travels faster jn solid than in gases and rhat is not in the question
using comparative,
sound travel in the increasing order with the following medium below
Air ............... fast
liquid............ faster
solid............. fastest.
God must surely crown our efforts 🙏🙏🙏
Answer: (D) with greater ease through a string than in air
Explanation
Sound travels as a wave through a medium. The speed and efficiency of sound transmission depend on the properties of the medium, specifically its density and elasticity. Solids are generally denser and more elastic than gases (like air), allowing sound waves to propagate more efficiently and faster.
In a tin can telephone, the sound waves produced by the voice cause the bottom of the can to vibrate. These vibrations are then transferred to the taut string. The string, being a solid, transmits the vibrations to the other can much more effectively than air would, allowing the sound to be heard over a distance. This demonstrates that sound travels with greater ease through the solid string than through the air.
