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CBSE Class 11-science Answered

(a)  Which is more elastic:  rubber or glass? Why? (b)  Identical springs of steel and copper are equally stretched.  On which spring, more work will have to be done?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

(a)  Glass is more elastic than rubber because for a given applied force per unit area, the strain produced in glass is much smaller than the strain produced in rubber.

(b)  Y for steel is more that of copper.  Therefore, in order to produce the same extension, a larger force will have to be applied on the steel spring than the copper spring.

Answered by | 04 Jun, 2014, 03:23: PM

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