- A The ratio of increase in volume of a body per degree rise in temperature to its unit volume
- B The ratio of increase in length of a body per degree rise in temperature to its unit length
- C The ratio of increase in area of a body per degree rise in temperature to its unit area
- D The ratio of increase in mass of a body per degree rise in temperature to its unit mass
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Answer:
C
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The coefficient of superficial expansion is the ratio of the increase in area of a body per degree rise in temperature to its unit area.
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