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JEE PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS
1
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Understanding
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On increasing temperature, the elasticity of a material
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Correct option: B
Decreases
Option B (Decreases) is correct because as temperature increases, the material becomes less resistant to deformation, thus decreasing its elasticity.
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Reason: Modulus of elasticity is a material property. A wire can be broken by applying a load of 200 N. The force required to break another wire of the same length and same material, but double in diameter, is Assertion(A): If radius of cylindrical wire is doubled, then this wire can bear four times stress.
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