NEET UG PHYSICS MCQ: NUCLEI

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The rest mass of an electron as well as that of positron is

0.51\,\,MeV

. When an electron and positron are annihilate, they produce gamma-rays of wavelength(s)

View answer and explanation

Correct option: A

0.012\,\mathop \mathrm{A}\limits^ \circ

Option A (

0.012\,\mathop \mathrm{A}\limits^ \circ \,

) is correct because the wavelength of the gamma rays produced is calculated using the energy equivalent of the electron and positron mass.

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