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CGP EDU Academic Team
Published on: September 12, 2026
A unit scale is to be prepared whose length does not change with temperature and remains 20 cm, using a bimetallic strip made of brass and iron each of different length. The length of both components would change in such a way that difference between their lengths remains constant. If length of brass is 40 cm and length of iron will be __________ cm 
Text Solution
Verified by ExpertsThe correct answer is:
60
(60)
Sol. 
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