Related Questions

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 $${\frac{3}{4}^{{\text{th}}}}$$ of it will disintegrate in two months
B It will completely disintegrate in two months
C It will completely disintegrate in four months
D $${\frac{l}{8}^{{\text{th}}}}$$ of it will remain intact at the end of four months
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
কোনটি তেজস্ক্রিয়তার ক্ষয়সূত্র (law of radioactive decay)?
A N==N0e-t
B   N =N0e-λt/t
C  N=N0e-λt 
D      N=N0e-t/t
A radioactive isotope undergoes decay with respect to time following __________ law.
A logarithmic
B exponential
C inverse square
D linear
Radioactive decay is a __________ change.
A Chemical
B Nuclear
C Physical
D None of these
Half life of a radioactive isotope corresponds to the time required for half of the following to decay
A Electrons
B Protons
C Neutrons
D Atom
The time required for half of the __________ of a radioactive isotope to decay is called its half life.
A Nuclei
B Electrons
C Protons
D Neutrons
Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
A Atoms
B Neutrons
C Nucleons
D Electrons
Radioactive decay follows __________ order kinetics.
A First
B Second
C Third
D Zero
Radioactive decay of a material involves a __________ order reaction.
A Third
B Second
C First
D Zero

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