Two spherical black bodies of radii r 1 and r 2 and with surface temperature T 1 and T 2…
Physics · JEE Main · NTA Exams — Thermodynamics
Two spherical black bodies of radii r1 and r2 and with surface temperature T1 and T2 respectively, radiate the same power. Then, the ratio of r1 and r2 will be:
- \(\left(\frac{T_{2}}{T_{1}}\right)^{2}\)
- \(\left(\frac{T_{2}}{T_{1}}\right)^{4}\)
- \(\left(\frac{T_{1}}{T_{2}}\right)^{2}\)
- \(\left(\frac{T_{1}}{T_{2}}\right)^{4}\)
Answer
(A) ( T_ 2 T_ 1 )^ 2
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