the number of beta particles emitted by a radioactive

The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an

A. isobar of parent

B. isomer of parent

C. isotone of parent

D. isotope of parent

Answer : isotope of parent

Solution :
Let the radioactive substance be $$_Z^AX.$$
Radioactive transition is given by
\[_Z^AX\xrightarrow{{ - \alpha }}_{Z - 2}^{A - 4}X\xrightarrow{{ - 2\beta }}_Z^{A - 4}X\]
The atoms of element having same atomic number but different mass numbers are called isotopes.
So, $$_Z^AX$$ and $$_Z^{A - 4}X$$ are isotopes.

Releted MCQ Question on
Modern Physics >> Radioactivity

Releted Question 1

An alpha particle of energy $$5\,MeV$$ is scattered through $${180^ \circ }$$ by a fixed uranium nucleus. The distance of closest approach is of the order of

A. $$1\, \mathop {\text{A}}\limits^ \circ $$

B. $${10^{ - 10}}cm$$

C. $${10^{ - 12}}cm$$

D. $${10^{ - 15}}cm$$

View Answer

Releted Question 2

Beta rays emitted by a radioactive material are

A. electromagnetic radiations

B. the electrons orbiting around the nucleus

C. charged particles emitted by the nucleus

D. neutral particles

View Answer

Releted Question 3

Consider $$\alpha $$ particles, $$\beta $$ particles and $$\gamma $$ - rays, each having an energy of $$0.5\,MeV.$$ In increasing order of penetrating powers, the radiations are:

A. $$\alpha ,\beta ,\gamma $$

B. $$\alpha ,\gamma ,\beta $$

C. $$\beta ,\gamma ,\alpha $$

D. $$\gamma ,\beta ,\alpha $$

View Answer

Releted Question 4

A radioactive material decays by simultaneous emission of two particles with respective half-lives 1620 and 810 years. The time, in years, after which one-fourth of the material remains is

A. 1080

B. 2430

C. 3240

D. 4860

View Answer

The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an

Releted MCQ Question on
Modern Physics >> Radioactivity

An alpha particle of energy $$5\,MeV$$ is scattered through $${180^ \circ }$$ by a fixed uranium nucleus. The distance of closest approach is of the order of

Beta rays emitted by a radioactive material are

Consider $$\alpha $$ particles, $$\beta $$ particles and $$\gamma $$ - rays, each having an energy of $$0.5\,MeV.$$ In increasing order of penetrating powers, the radiations are:

A radioactive material decays by simultaneous emission of two particles with respective half-lives 1620 and 810 years. The time, in years, after which one-fourth of the material remains is

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Radioactivity

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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an

Releted MCQ Question on Modern Physics >> Radioactivity

An alpha particle of energy $$5\,MeV$$ is scattered through $${180^ \circ }$$ by a fixed uranium nucleus. The distance of closest approach is of the order of

Beta rays emitted by a radioactive material are

Consider $$\alpha $$ particles, $$\beta $$ particles and $$\gamma $$ - rays, each having an energy of $$0.5\,MeV.$$ In increasing order of penetrating powers, the radiations are:

A radioactive material decays by simultaneous emission of two particles with respective half-lives 1620 and 810 years. The time, in years, after which one-fourth of the material remains is

Practice More Releted MCQ Question on Radioactivity

Practice More MCQ Question on Physics Section

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