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NEET Physics · Hard

Mechanical Properties of Solids: Young's Modulus MCQ

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Young's ModulusHardQuestion 6321

Question

A wire (Y, L, A) hangs vertically. Mass M attached. Elongation:
  1. A
    MgL/AY
    Correct
  2. B
    MgL²/AY
  3. C
    MgA/LY
  4. D
    YAL/Mg

Correct answer

MgL/AY

Explanation

ΔL = FL/AY = MgL/AY.

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