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Grade upto college level Thermal Physics

A large flat slab of metal at temperature T₀ has a hole in it. The metal is warned to a new temperature T> T₀. Upon warming, the area of the hole will
(A) increase.
(B)decrease.
(C) remain the same size.
(D) possibly change size, depending on the shape of the hole.

Amit Saxena

11 Years agoGrade upto college level

3 Answers

sankalp nainwal

11 Years ago

b

rehman ali

6 Years ago

(a) different metal expand due to higher temperature because due to movement of particles they have need more space , then hole increase

Vikas TU

6 Years ago

Metals expand when you heat them, so the circle should expand. There's no real difference between the circle and a hole (of the same size) cut out of it. The circle is, in effect, the circumference of the hole you put into it. So the hole will get larger.

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