Properties Of Solids And Liquids Question 581

Question: An iron bar of length 10 m is heated from 0C to 100C . If the coefficient of linear thermal expansion of iron is 10×106/C , the increase in the length of bar is

Options:

A) 0.5 cm

B) 1.0 cm

C) 1.5 cm

D) 2.0 cm

Show Answer

Answer:

Correct Answer: B

Solution:

Increase in lengthΔL=L0αΔθ

=10×10×106×(1000)=102m=1cm



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