Correct answer
C. Both A. & B.
Explanation
The correct answer is Both A. & B..
The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be ________ percent?
Digestion of wood-base materials (for manufacture of pulp) is done to ________?
Often earing defects are found during deep drawing operation, because the ________?
Dry bulb temperature of the gas is ________ the wet bulb temperature?
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is________?
Mannheim furnace is used in the manufacture of________?