Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Thermal Properties of Matter Heat transfer
A black body is maintained at 27°C and 927°C . The ratio of radiations emitted will be -
1
1 ∶ 4
2
1 ∶ 256
3
1 ∶ 64
4
More than one of the above
5
None of the above