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STD 11- 8. mechanical properties of solids — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11- 8. mechanical properties of solids4 Marks
MCQ
$Assertion :$ Stress is the internal force per unitarea of a body.
$Reason :$ Rubber is more elastic than steel.
  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • B
    If the Assertion is correct but Reason is incorrect.
  • ✓
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: C.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
c
Stress is internal force (restoring force) developed within the body of the object. Since it is easier to stretch rubber so it is less stressful and therefore less elastic.

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