Waves in Solid and Fluids

Apr 2017
50
2
Turkey
Greetings to all , please i have this question :

A solid can transport both longitudinal waves and transverse
waves, but a fluid can transport only longitudinal
waves. Why?

I think because in fluids we can not construct a mass per unit length , but i am not sure about this answer , any help please to explain the reason ?

Best regards
Razi
 
Jun 2016
1,247
593
England
A wave happens when the result of being pushed away from a balanced equilibrium condition, causes a restorative action toward the equilibrium.
(the system overshoots, then returns back the other way, overshoots, etc...)

In a solid the lattice of intermolecular bonds resists lateral movement;
giving the required restorative action.

The intermolecular bonds in a fluid do not resist lateral movement in the same fashion.
If you push a fluid sideways, it just flows around the push.
There is not the required restorative action.
 
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Apr 2017
50
2
Turkey
Thanks for your answer
Regards