Question

An iron ball is heated. The percentage increase will be largest in
a)volume
b)diameter
c)density
d)surface area

Answer 1

Hi friend here is your answer

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If an iron ball is heated, then its surface area will increase.

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Answer 2

Solution : An iron ball is heated. The percentage increase will be largest in volume

• When a solid iron ball is heated, the percentage increase will be largest in its volume
• The reason is coefficient of superficial expansion is twice that of linear expansion whereas coefficient of volume expansion is three times of linear expansion
• So we can see that the value of coefficient of volume expansion is greater than the coefficient of both linear and areal expansion. So as the temperature increases the volume will expand more as compare to both area and length.
• The coefficient of thermal expansion is measured as how an object size increases when the temperature increases.
• Therefore the percentage increase in volume is maximum

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