Question

A long string is constructed by joining the ends of two shorter strings. The tension in the strings is the same but string I has 4 times the linear mass density of string II. When a sinusoidal wave passes from string I to string II:
A) the frequency decreases by a factor of 4
B) the frequency decreases by a factor of 2
C) the wavelength decreases by a factor of 4
D) the wavelength decreases by a factor of 2
E) the wavelength increases by a factor of 2

Answer

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