Questions
A uniform thin rope of length 12 m and mass 6 kg hangs vertically from a rigid support and a block of mass 2 kg is attached to its free end. A transverse short wave-train of wavelength 6 cm is produced at the lower end of the rope. What is the wavelength of wavetrain (in cm) when it reaches the top of the rope?
detailed solution
Correct option is A
V=fλ⇒V∝λAlso, V=Tμ∴T∝λ⇒22+6=6λ⇒λ=6(2)=12 cmTalk to our academic expert!
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A particle on a stretched string supporting a travelling wave, takes 5.0 ms to move from its mean position to the extreme position. The distance between two consecutive particles, which are at their mean positions, is 3.0 cm. Find the wave speed (in m/s).
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