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Elasticity — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsElasticity1 Mark
Question
Assertion : Sterss is the internal force per unit area of a body.
Reason : Rubber is less elastic than steel.
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Answer

(b) Stress is defined as internal force (restoring force) per unit area of a body. Also, rubber is less elastic than steel, because restoring force is less for rubber than steel.

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