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A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U1, at wavelength 500 nm is U22 and that at 1000 nm is U3. Wien's constant, b = 2.88 × 106 nmK. Which of the following is correct ?
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- U1 = 0
- U3 = 0
- U1 > U2
- U2 > U1
Correct Option: D
According to wein's displacement law, maximum amount of emitted radiation corresponding to λm = b/T
| λm = | = 500nm | |
| 5760 k |
From the graph U1 < U2 < U3
