When an iron washer is heated which of the following is true?
Mass and density will remain same.
Thickness and volume will increase .
Density and internal diameter will decrease.
External diameter and mass will increase .
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Answer:
(a) Mass does not change in heating.
(b) Internal diameter increases as the washer expands.
(c) External diameter increases as the washer expands.
(d) Density decreases as volume increases.
Explanation:
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