Two rods, one of aluminium of length λ 1 having coefficient of linear expansion α a and other of steel is having coefficient of linear expansion α s and length λ 2 are joined end to end. The expansion in both the rods is same for same variation of temperature. Then the value of 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Given Δ λ 1 = Δ λ 2
or λ 1 α a Δ T = λ 2 α s Δ T
∴ 
or 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
When a copper ball is heated, the largest percentage increase will occur in its
A vertical column 50 cm long at 50°C balances another column of same liquid 60 cm long at 100°C. Th…
The apparent coefficient of expansion of a liquid when heated in a copper vessel is C and when heat…
A uniform metal rod is used as a bar pendulum. If the room temperature rises by 10°C, and the coeff…
A bar of iron is 10 cm at 20°C. At 19°C it will be ( α α of iron = 11 × × 10 –6 /°C)
When a rod is heated but prevented from expanding, the stress developed is independent of