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Question 6311
NEET Physics · Hard

Mechanical Properties of Solids: Young's Modulus MCQ

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Young's ModulusHardQuestion 6311

Question

Two wires (same material) in series, each of length L and cross-section A. Effective spring constant:
  1. A
    YA/L
  2. B
    YA/2L
    Correct
  3. C
    2YA/L
  4. D
    YA/4L

Correct answer

YA/2L

Explanation

Series springs: 1/k_eff = 1/k + 1/k = 2/k. k_eff = k/2 = YA/2L = YA/2L.

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