Physics > 2020 > 18
WASSCE
The length of an iron bar is 100 cm at 20∘C. At what temperature will its length increase by 0.01% ?[Linear expasivity of iron = 1.2 x 10-5 = C-1]
A.
48.0∘C
B.
38.0∘C
C.
28.3∘C
D.
23.0∘C
Answer: C
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