Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Laws and Principles
The Refrigerator works on which of the following principles?
1
Osmosis
2
Evaporation
3
Dispersion
4
More than one of the above
5
None of the above