Which of the following radiations has the least wavelength?

  • Option 1)

    \gamma -rays\;

  • Option 2)

    \; \; \beta-rays\;

  • Option 3)

    \; \; \alpha-rays\;

  • Option 4)

    \; X-rays

 

Answers (1)

As we learnt

γ decay -

\gamma ray emitted when nucleus undergoes radio active decay left it in excited state 

- wherein

After emission of \alpha ,\beta  particle the product nucleus formed in excited state

 

 

\lambda=\frac{hc}{\Delta E}

Since \gamma has highest energy associated with it and hence its wavelength is least .

Correct option is 1.


Option 1)

\gamma -rays\;

This is the correct option.

Option 2)

\; \; \beta-rays\;

This is an incorrect option.

Option 3)

\; \; \alpha-rays\;

This is an incorrect option.

Option 4)

\; X-rays

This is an incorrect option.

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