V=fλ
λ1V1=λ2V2
λ2=V1V2λ1=T1T2λ1T2=8g(Top)
2g8gλ1
T1=2g(Bottom)=2λ1=12cm
JEE Main 2020 — Physics Waves & Oscillations
A uniform thin rope of length 12m and mass 6kg hangs vertically from a rigid support and a block of mass 2kg is attached to its free end. A transverse short wave train of wavelength 6cm is produced at the lower and the rope. What is the wavelength of the wave train (in cm ) when it reaches the top of the rope?
Held on 3 Sept 2020 · Verified 6 Jul 2026.
3
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12
9
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