Properties Of Solids And Liquids Question 551

Question: A steel scale is calibrated for27oC. The error in a reading of 50 cm at30oC is [αsteel=1.2×105/oC]

Options:

A) 0.018 mm

B) 0.18 mm

C) 0.0018 mm

D) 0.16 mm

Show Answer

Answer:

Correct Answer: A

Solution:

Error, ΔL=LαΔT=50×1.2×105×3 =0.018 mm



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