Question

Temperatures of two rods of metal A and
metal B each of 20 cm length are increased from 0 to 100°C.
The increase in the length of two rods are, respectively, 0.075
cm and 0.045 cm. A third rod having same length but is a
composite rod of metals A and B has its length increased by
0.060 cm due to same rise of temperature. Calculate the
lengths of two metals in the composite rod.
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Answer 1

Answer:

Explanation:

Temperature of the two rods a and metal b each of 20 cm length are both temperature of the rod of metal b each other and interest

Answer 2

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