HomeEngineeringThe amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent. 3875. The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.By Admin / September 7, 2025 3.125 6.25 12.5 25 ✅ The correct answer is option B.
1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm². Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin
2. Transformer cores are normally made from Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin