Pulse Travel Time Ratio (Jee Mains)

Superposition principle

Medium

Pulse Travel Time Ratio

Two strings (A, B) having linear densities μ_A = 2 × 10^–4 kg/m and μ_B = 4 × 10^–4 kg/m and lengths L_A = 2.5 m and L_B = 1.5 m respectively are joined. Free ends of A and B are tied to two rigid supports C and D, respectively creating a tension of 500 N in the wire. Two identical pulses, sent from C and D ends, take time t₁ and t₂, respectively, to reach the joint. The ratio t₁/t₂ is :

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