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Half part of ice block is covered with b...

Half part of ice block is covered with black cloth and rest half is covered with white cloth and then it is kept in sunlight. After some time clothes are removed to see the melted ice. Which of the following statements is correct

A

Ice covered with white cloth will melt more

B

Ice covered with black cloth will melt more

C

Equal ice will melt under both clothes

D

It will depend on the temperature of surroundings of ice

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The correct Answer is:
B
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ERRORLESS -TRANSMISSION OF HEAT-Radiation (General, Kirchoff s law, Black body)
  1. Relation between emissivity e and absorptive power a is (for black bod...

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  2. Which of the following statements is wrong ?

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  3. Half part of ice block is covered with black cloth and rest half is co...

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  4. If between wavelength lambda andlambda + dlambda, e(lambda) and a(lamb...

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

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  6. Distribution of energy in the spectrum of a black body can be correctl...

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  7. In rainy season, on a clear night the black seat of a bicycle becomes ...

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

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  9. At a certain temperature for given wavelength, the ratio of emissive p...

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  10. The cause of Fraunhoffer lines is

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  11. Two thermometers A and B are exposed in sunlight. The bulb of A is pai...

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  12. There is a black spot on a body. If the body is heated and carried in ...

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  13. When red glass is heated in dark room it will seem

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  14. A hot body will radiate maximum energy if its surface is

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  15. A body, which emits radiations of all possible wavelengths, is known a...

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  16. Which of the following is the example of ideal black body?

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  17. An ideal Black-body at room temperature is thrown into a furnace. It i...

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  18. Absorption co-efficient of an open window is...

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  19. Which of the prism is used to see infra-red spectrum of light

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  20. Which of the following statement is correct

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