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Shining surfa...

Question

Shining surfaces are ________ absorbers of heat energy.

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Solution

Most of the radiant heat gets reflected from shining and white bodies.
White or shining bodies are poor absorbers of radiant energy.
Hence, Shining surfaces are poor absorbers of heat energy.

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Q. Fill in the blanks with the proper word from the brackets.
(radiation, white, conduction, blue, convection, bad conductor, good conductor, black, reflection)

(a) Maximum heat is absorbed by a ................ coloured object.

(b) ...................... of heat does not require a medium.

(c) Conduction of heat takes place through a .......................... substance.

(d) The shining surface in a thermos flask decreases the outgoing heat by ......................... .

(e) Cooking utensils are made from metals due to their property of ................. .

(f) The earth receives heat from the sun by .................... .

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The curved shining outer surface of a spoon acts as a _______ mirror.

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