ekaram

"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 wavepasses 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"
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