1.

The radiations from the sun have maximum wavelength of 5760Å. The surface temperature of the sun is : (b=0.288xx10^(-2)"mK") :

Answer»

6000 K
5000 K
4000 K
None of the above

Solution :`lamda_(m)*T=b`
`rArrT=(0*288xx10^(-2))/(5760xx10^(-10))`
`=5000K`.
THUS CORRECT choice is (b).


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