Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A hole is drilled in a metal sheet. At 27°C, the diameter of hole is 5 cm. When the sheet is heated to 177°C, the change in the diameter of hole is d x 10 -3 cm. The value of d will be _______ if coefficient of linear expansion of the metal is 1.6 x 10 -5 /°C.
Text Solution
Verified by ExpertsThe correct answer is:
12
(12)
d 0 at 27°C & d 1 at 177°C
d 1 =d 0 (1 + 
T)
d 1 -d 0 = 5 x 1.6 x 10 -5 x 150cm
= 12 x 10 -3 cm
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