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Assertion : identical springs of steel a...

Assertion : identical springs of steel and copper are equally stretched. More work will be done on the steel spring.
Reason : Steel is more elastic than copper.

A

(a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true, but the Reason is false.

D

If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
`Y_("steel") gt Y_("copper")` . So, for the same strain , stress to be produced in steel is more. ltbr gt Also , Work done ` = 1/2 "stress"xx"strain"`
Volume `= 1/2Yxxepsilon ^(2)`
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