Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physical Sciences Thermodynamic and Statistical Physics
A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be
1
1800
2
225
3
450
4
More than one of the above
5
None of the above