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S.I unit of emissive power is...

S.I unit of emissive power is

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A metal cube with each side 3 cm long emits 0.27 kcal in 100s. Then its emissive power is

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State the SI unit and dimensions of emissive power.

A black body of emissive power 81 J/ m^(2) s when it is at 300 K and ordinary body of emissivity 0.8 when it is at 500 K. what is the emissive power of an ordinary body?

Dimensions of emissive power are

............... of a body at a given temperature is the ratio of total emissive power of the body to the total emissive power of a perfectly black body at the same temperature.

SL ARORA-Thermal Properties of Matter-Exercise
  1. Define thermal conduction and convection. How are these modes of trans...

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  2. Define absorptive power. Write their SI units, if any.

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  3. S.I unit of emissive power is

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  4. Coefficient of emission or emissivity (e) is defined as

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  5. The temperature at which a black body ceases to radiate energy is .

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  6. Explain why Greenhouse effect is responsible for global warming.

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  7. Explain what is meant by the coefficients of linear (alpha), superfici...

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  8. Pressure at the triple point of water is

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  9. On what factors does the rate of heat conduction in a metallic rod in ...

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  10. Name the three modes of transmission of heat.

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  11. when a piece of red glass heated in a furnace is taken out, it glows w...

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  12. State and Explain Newton s second law of motion Hence , Deduce the re...

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  13. Newton's law of cooling leads us to the following expression.

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  14. A constant volume gas thermometer works on

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  15. The temperature co-effcient of resistance of a wire is 0.00125^(@)C. A...

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  16. Two rods, one of aluminium and the other made of steel, having initial...

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  17. A metal ball immersed in alcohol weights W1 at 0^@C and W2 at 50^@C. T...

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  18. When a block of iron in mercury at 0^@C, fraction K1of its volume is s...

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  19. Calorie is defined as the amount of heat required to raise temperature...

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  20. Compared to a burn due to water at 100^(@)C , a burn due to steam at 1...

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