Two wires, made of same material, one thick and the other thin are...

Two wires, made of same material, one thick and the other thin are joined to form one composite wire. The composite wire is subjected to the same tension throughout. A wave travels along the wire and passes the point where the two wires are joined. The quantity which changes at the joint are

Options

Afrequency only.
Bpropagation speed only.
Cwavelength only.
Dboth propagation speed and wavelength.

Correct answer

D. both propagation speed and wavelength.

Step-by-step solution

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