(A) Cobalt-$60$ $(^{60}Co)$ is a radioactive isotope of cobalt.It undergoes radioactive decay and emits high-energy $\gamma$-radiations.These $\gamma$

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(A) Cobalt-$60$ $(^{60}Co)$ is a radioactive isotope of cobalt.It undergoes radioactive decay and emits high-energy $\gamma$-radiations.These $\gamma$-radiations have high penetrating power and are used in radiation therapy to target and destroy cancerous cells.Therefore,the Assertion is correct,the Reason is correct,and the Reason provides the correct explanation for the Assertion.

Class 12 Physics Nuclei Properties of Alpha, Beta and Gamma Rays and Decay Process

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Assertion: Cobalt-$60$ is useful in cancer therapy.
Reason: Cobalt-$60$ is a source of $\gamma$-radiations capable of killing cancerous cells.

AIIMS 2006 All AIIMS

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.

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Chapter

Nuclei

Subtopic

Properties of Alpha, Beta and Gamma Rays and Decay Process

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AIIMS 2006 Paper All AIIMS years →

$A$ radioactive nuclide of element $X$ decays to form element $Y$. The graph representing the rate of production of $Y$ in a sample of $X$ is:

Medium

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Outside a nucleus,which of the following statements is true?

Easy

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Explain the $\alpha$-decay process and give its appropriate example.

Easy

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$A$ radioactive nucleus decays as follows:
$X \xrightarrow{\alpha} X_1 \xrightarrow{\beta} X_2 \xrightarrow{\alpha} X_3 \xrightarrow{\gamma} X_4$
If the mass number and atomic number of $X_4$ are $172$ and $69$ respectively, then the atomic number and mass number of $X$ are:

MediumWBJEE 2025

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$A$ hypothetical radioactive nucleus decays according to the following series:
$A \xrightarrow{\alpha} A_1 \xrightarrow{\beta^-} A_2 \xrightarrow{\alpha} A_3 \xrightarrow{\gamma} A_4$
If the mass number and atomic number of $A$ are respectively $180$ and $72$,then the atomic number and mass number of $A_4$ will be respectively:

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Assertion: Cobalt-$60$ is useful in cancer therapy.Reason: Cobalt-$60$ is a source of $\gamma$-radiations capable of killing cancerous cells.

Similar Questions

$A$ radioactive nuclide of element $X$ decays to form element $Y$. The graph representing the rate of production of $Y$ in a sample of $X$ is:

Outside a nucleus,which of the following statements is true?

Explain the $\alpha$-decay process and give its appropriate example.

$A$ radioactive nucleus decays as follows:$X \xrightarrow{\alpha} X_1 \xrightarrow{\beta} X_2 \xrightarrow{\alpha} X_3 \xrightarrow{\gamma} X_4$If the mass number and atomic number of $X_4$ are $172$ and $69$ respectively, then the atomic number and mass number of $X$ are:

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Assertion: Cobalt-$60$ is useful in cancer therapy.
Reason: Cobalt-$60$ is a source of $\gamma$-radiations capable of killing cancerous cells.

$A$ radioactive nucleus decays as follows:
$X \xrightarrow{\alpha} X_1 \xrightarrow{\beta} X_2 \xrightarrow{\alpha} X_3 \xrightarrow{\gamma} X_4$
If the mass number and atomic number of $X_4$ are $172$ and $69$ respectively, then the atomic number and mass number of $X$ are: