Question

Expansion of substance on heating depends upon

(a) Nature of substance.

(b) Rise in temperature.

(c) Colour of the substance.

(d) All of the above.​

Answer 1

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• Both (A) and (B)

•Thermal expansion is the change in size of and object as it's temperature changes, normally as the temperature increases, the size of an object also increases. Hence expansion of a substance on heating depends on nature of substance and rise in temperature.

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Answer 2

Answer:

answer is both a and b

Explanation:

because iron is metal this is there natura that iron can conduct electricity so we say first in this case

then without rise of temperature iron can't be heat so this is example of b

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