transverse wave

JEE Mains 2015 Papers › Mechanics questions › transverse wave

A block of mass 2m is hanging at the lower end of a rope of mass m and length l . THe other end is fixed to the ceiling .A pulse of wavelength Î»₀ is produced at the lower end of the rope,what is the wavelength of the pulse when it reaches the top?

#Physics #Mechanics

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5 Answers

24

eureka123 ·2009-02-21 20:37:14

v_bottom=âˆš(2mg/(m/l)) =âˆš2gl
v_top=âˆš(3mg/(m/l)) =âˆš3gl
since f constant
=>âˆš2gl /Î»₀=âˆš3gl /Î»
=> Î»=âˆš(3/2) Î»₀

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iitimcomin ·2009-02-21 21:40:46

YEP........ THATS PERFECT.....GUD 1 EUREKA!!!![1]..................

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eureka123 ·2009-02-21 21:47:06

thanx bro..

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Vivek ·2009-02-22 05:13:31

thanks eureka

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skygirl ·2009-03-21 19:53:14

this is great!

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω