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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 137 of 200

Q137
General SciencePhysics
Which one of the following is more elastic
  1. a.Copper
  2. b.Rubber
  3. c.Sponze
  4. d.Steel

Answer: (D) Steel

In physics, elasticity means resistance to deformation and the ability to recover, measured by Young's modulus, and steel's (about 200 GPa) is far higher than copper's and vastly higher than rubber's. Rubber stretches easily, which makes it the tempting wrong answer, but that means it is less elastic in this sense.

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Which one of the following is more elastic — WBCS Main Examination 2023 Q137 | Prostuti360°