A. α
B. β
C. γ
D. α & β
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Related Mcqs:
- The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?
- A. A + Z B. A – Z C. A D. Z...
- The mass number of an element is not changed, when it emits _______________ radiations?
- A. α & β B. β & γ C. γ & α D. α, β, & γ...
- 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...
- β-rays emission in radioactive disintegration is always accompanied by the emission of____________________?
- A. γ-rays B. α-rays C. Neutrons D. None of these...
- 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 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...
- 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...
- The half life period of a radioactive element depends upon the___________________?
- A. Temperature B. Pressure C. Amount of element present D. None of these...
- 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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