A) A body of low thermal capacity gets heated or cooled quickly.
B) Good emitters are bad reflectors.

both A and B are true

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A is true but B is false

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B is true but A is false

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both A and B are false

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Solution

The correct option is A both A and B are true
Low thermal capacity implies less energy is required to increase the temperature of material by a given amount.
Good emitters are good absorbers and hence, bad reflectors.
( $A b s o r p t i v i t y + R e f l e c t i v i t y = 1$ )

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