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One healf of a slab of ice is covered wi...

One healf of a slab of ice is covered with black cloth and the other half with white cloth This is then placed in sunlight After some time the pieces of cloth are removed Then .

A

ice has melted equally under both the pieces

B

more ice has melted under white cloth

C

more ice has melted under black cloth

D

it will depend on the medium in which ice is placed

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The correct Answer is:
C
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NARAYNA-TRANSMISSION OF HEAT-C .U .Q
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  2. When a body has the same temperature as that of its surroundings

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  5. Which of the following statements is wrong ?

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  7. If we place our hand below a lighted electric bulb We feel warmer beca...

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  8. Heating effect of the incoming solar radiation is maximum at local noo...

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  9. The absorptivity of Lamp black and platinum black is .

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  10. Absorptive power of a white body and of a perfectly black body respect...

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  11. Three bodies A,B,C are at -27^(@)C, 0^(@)C, 100^(@)C respectively The ...

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  12. At high temperature black body spectrum is .

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  13. A black body emits

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  14. The best laboratory approximation to an ideal black body is .

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  15. A black body does not .

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  16. If the amount of heat energy received per unit area from the Sun is me...

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  17. The colour of a star is a measure of its .

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  18. A polished metal plate with a rough black spot on it is heated to abou...

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  19. If 'p' calorie of heat energy is incident on a body and absorbs 'q' ca...

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  20. The velocity of heat radiation in vacuum is .

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