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Q. No.A spherical black body with a radius of \(12~\text{cm}\) radiates \(450~\text W\) power at \(500~\text K.\) If the radius were halved and the temperature is doubled, the power radiated in watts would be:
1. \(450\)
2. \(1000\)
3. \(1800\)
4. \(225\)
1. \(450\)
2. \(1000\)
3. \(1800\)
4. \(225\)
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Subtopic: Â Radiation |
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