A. 3/4
B. 1/6
C. 3
D. 4
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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...
- The half life period of a radioactive element depends on its _______________________?
- A. Temperature B. Pressure C. Amount D. None of these...
- The half life period of a radioactive element depends upon the___________________?
- A. Temperature B. Pressure C. Amount of element present D. None of these...
- 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...
- 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 amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be ______________ of its original weight?
- A. 1/2 B. 1/4 C. 1/8 D. 1/16...
- The disintegration rate of a radioactive element _______________?
- A. Progressively increases B. Progressively decreases C. Remains constant throughout D. May increase or decrease depending on the material...
- The atomic number of a radioactive element is not changed, when it emits _____________ rays?
- A. α B. β C. γ D. α & β...
- The new nucleus formed after β-decay of a radioactive element has___________________?
- A. Less atomic number B. Less atomic weight C. More atomic number D. More atomic weight...
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