Question

The electron cannot exist inside the nucleus because

• A. de-Broglie wavelength associated with electron in $\beta$ -decay is much less than the size of nucleus
• B. de-Broglie wavelength associated with electron in $\beta$ -decay is much greater than the size of nucleus
• C. de-Broglie wavelength associated with electron in $\beta$ -decay is equal to the size of nucleus
• D. de-Broglie negative charge cannot exist in the nucleus

Answer 1

The correct option is B de-Broglie wavelength associated with electron in $\beta$ -decay is much greater than the size of nucleus

${\beta }^{-}decay$:

${\beta }^{-}$ radioactivity occurs when a nucleus emits a negative electron from an unstable radioactive nucleus whose deBroglie wavelength of order $MeV$ is much larger than nuclear dimensions.