Heat and Thermodynamics 2 Question 4
7. Two rods, one of aluminium and the other made of steel, having initial length and are connected together to form a single rod of length . The coefficients of linear expansion for aluminium and steel are and respectively. If the length of each rod increases by the same amount when their temperature are raised by , then find the ratio
(2003, 2M)
(a)
(b)
(c)
(d)
Objective Question II (One or more correct option)
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Answer:
Correct Answer: 7.
Solution:
- Given
or