Q94 / 100 · BITSAT 2024 (Memory Based Paper 2) · Physics

With rise in temperature, the Young's modulus of elasticity:

  • A
    changes erratically
  • Correct answer
    B
    decreases
  • C
    increases
  • D
    remains unchanged

Solution

Young's modulus, $\mathrm{Y}=\frac{\text { Stress }}{\text { Strain }}$ If the temperature increases, strain also increases. Hence young's modulus decreases.

Hence, the correct answer is option: 'B'.

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