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MHT CET Medical202622 April 2026Morning ShiftPhysicsWaves and SoundActual

Two copper wires of radii r₁ and r₂ ( r₁ > r₂ ) are subjected to same tension and are plucked. Tansverse waves set up will

Options

  1. Atravel faster in the thicker wire.
  2. Btravel faster in the thinner wire.
  3. Ctravel with the same velocity in bothe the wires.
  4. Dnot travel through both the wires.

Correct answer

B. travel faster in the thinner wire.

Step-by-step solution

The velocity of a transverse wave in a stretched wire is given by v = T , where T is the tension and is the linear mass density. The linear mass density can be expressed as = r^2 , where r is the radius of the wire and is the density of the material. Substituting into the velocity formula gives v = T r^2 = 1 r T . Since both wires are made of copper, their densities are the same. The tension T is also the same for both wires. Therefore, the velocity v is inversely proportional to the radius r , which means v 1 r .

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