MCQ practice · SSC Physics Board questions · Chapter 5: State of Matter and Pressure
Which has the lowest elasticity?
Think it through first, then pick an option.
- a bone
- b wood
- c glass
- d aluminium
Answer and explanation
Correct answer: a bone
Right. Bone has the lowest Y here, 9 GPa; wood is 10, glass 50-90 and aluminium 69.
Why the other options are wrong
- b wood: Wood has Y = 10 GPa, a little above bone (9 GPa).
- c glass: Glass has Y = 50-90 GPa, far above bone.
- d aluminium: Aluminium has Y = 69 GPa, far above bone.
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- Which two quantities have the same unit?
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