A. 1/2
B. 1/4
C. 1/8
D. 1/16
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Related Mcqs:
- The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?
- A. 3/4th of it will disintegrate in two months B. It will completely disintegrate in two months C. It will completely disintegrate in four months D. 1/8th of it will remain intact at the end of four months...
- The half life period of a radioactive element is 100 days. After 400 days, one gm of the element will be reduced to ______________ gm?
- A. 1/4 B. 1/8 C. 1/2 D. 1/16...
- What is the average life of a radioactive atom having a ‘half life period’ of T ?
- A. 1.44 T B. 0.144 T C. 14.4 T D. 2T...
- The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be _____________ percent?
- A. 3.125 B. 6.25 C. 12.50 D. 25...
- 75% of a radioactive element decays in 6 hours. Its half life period is ______________ hours?
- A. 3/4 B. 1/6 C. 3 D. 4...
- The half life period of a radioactive element depends on its _______________________?
- A. Temperature B. Pressure C. Amount D. None of these...
- If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same isotope will be ____________ days?
- A. 5 B. 10 C. 20 D. 30...
- The half life period of a radioactive element depends upon the___________________?
- A. Temperature B. Pressure C. Amount of element present D. None of these...
- Radioactive decay of a material involves a _____________ order reaction?
- A. Third B. Second C. First D. Zero...
- In β-decay of radioactive material, the ratio of neutron to proton____________________?
- A. Increases B. Remain same C. Decreases D. Is unpredictable; may increase or decrease...
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