Medium
Why are the bells in temples and schools made of metal and not of wood?
(N/A) Bells are made of metal due to two primary reasons:
$(i)$ Metals have high elasticity and low internal damping,which allows the bell to vibrate for a longer duration after being struck.
$(ii)$ The speed of sound in metals is much higher than in wood,and metals are capable of producing high-frequency,resonant vibrations. This results in a sharp,clear,and loud sound that can travel over long distances and is easily audible.
$(i)$ Metals have high elasticity and low internal damping,which allows the bell to vibrate for a longer duration after being struck.
$(ii)$ The speed of sound in metals is much higher than in wood,and metals are capable of producing high-frequency,resonant vibrations. This results in a sharp,clear,and loud sound that can travel over long distances and is easily audible.
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