Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 68

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The mass number of a nucleus is,

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 69

Let

m_{p}

be the mass of proton,

m_{n}

the mass of neutron,

M_{1}

the mass of

{}_{10}^{20}{Ne}

nucleus and

M_{2}

the mass of

{}_{20}^{40}{Ca}

nucleus. Then,

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 70

A nucleus undergoes a series of decay according to the scheme

A \overset{α}{⟶} B \overset{β}{⟶} C \overset{a}{⟶} D \overset{y}{⟶} E

Atomic number and mass numbers of

E

are

69

and

172

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 71

A nitrogen nucleus

{}_{7}^{14}N

absorbs a neutron and can transform into lithium nucleus

{}_{3}^{7}{Li}

under suitable conditions, after emitting -

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 72

Which of the following processes does not represent a gamma decay?

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 73

Choose the correct statement(s).

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 74

An unstable nucleus emits radiations to transform into less unstable state. Select the correct statement(s).

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 75

Disintegration consicrit of a radioactive material is

λ

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Physics Crash Course JEE Advanced>Chapter 20 - Atoms and Nuclei>Exercise 1>Q 76

The variation of decay rate of two radioactive samples A and B with time is shown in figure. Which of the following statements are true?

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