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AP EAMCET · PHYSICS · Mechanical Properties of Solids

Same tension is applied to the following four wires made of same material. The elongation is longest in

  1. A Wire of length 50 cm and diameter 0.5 mm
  2. B Wire of length 200 cm and diameter 2 mm
  3. C Wire of length 300 cm and diameter 3 mm
  4. D Wire of length 100 cm and diameter 1 mm
Verified Solution

Answer & Solution

Correct Answer

(A) Wire of length 50 cm and diameter 0.5 mm

Step-by-step Solution

Detailed explanation

The Young's modulus (E) is a property of the material that tells us how easily it can stretch and deform and is defined as the ratio of tensile stress (σ) to tensile strain (ε). Y=FAdll⇒dl=lπd2×4FY As in our case, value of 4FY will be constant.…