18. The temperature of a perfect black body is727^° C and its area is 0.1 m2. If stefan's constantis 5.67 x 10 8 watt/m2 k4, then heat radiated by it in 1
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Black body radiation A blackbody is a perfect absorber of radiation, able to absorb completely radiation of any wavelength that falls on it. A blackbody. - ppt download
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What is a perfect blackbody ? How can it be realized in practice? - Sarthaks eConnect | Largest Online Education Community
![Color online) Near-perfect blackbody radiation from a VA-CNT sample.... | Download Scientific Diagram Color online) Near-perfect blackbody radiation from a VA-CNT sample.... | Download Scientific Diagram](https://www.researchgate.net/publication/51088863/figure/fig2/AS:394193760473100@1470994524946/Color-online-Near-perfect-blackbody-radiation-from-a-VA-CNT-sample-Thermal-radiation.png)