Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Thermodynamics Heat engines
The efficiency of heat engine can be increased by:
1
Increasing the temperature of heat sink
2
Decreasing the temperature of heat Sink
3
Increasing the heat rejected
4
More than of the above
5
None of the above