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Subject :NSO    Class : Class 8

In the given pictures, two containers of different colours are filled with hot water.

Vessel 'P' is painted black whereas vessel 'Q' is painted white. Which vessel maintains the hotness of water for longer duration?

AVessel P
BVessel Q
CBoth vessels will maintain hotness equally
DData insufficient

please explain

Ans 1:

Class : Class 9
black vessel will radiate more heat and cannot retain heat of water. so answer, is (B)

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9
we know that black absorbs heat but it also radiates heat

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