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The effective area of a black body is 0....

The effective area of a black body is 0.1 `m^2` and its temperature is 1000 K . The amount of radiations emitted by it per min is –

A

1.34 k – cal

B

81 k – cal

C

5.63 k – cal

D

1.34 k – J.

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The correct Answer is:
B
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -EXERCISE - 1
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  13. Frequency for maximum energy radiation of ideal black body at tempertu...

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  14. The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu...

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  15. The spectral emissive power of a black body at a temperature of 6000K ...

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  16. Temperature of an ordinary bulb is 3000^@K. At what wave length will i...

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  17. If for a black body the graph of change is emissive power at different...

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