Question

what are the wavelengths of the two photons produced when a proton and antiproton at rest annhiilate (in meters)

Answer 1

Step-by-step explanation:

mass of a proton = mass of an antiproton = 1.00727647 amu

total mass of proton and antiproton = 2.01455294 amu

1 amu = 931.5 x 10⁶ eV

2.01455294 amu = 1876.556064 x 10⁶ eV

Wavelength of radiation equivalent to this energy

=12375/1876.556064 x 10⁶ A = 6.5945 X 10⁻⁶A = 6.5945 X 10⁻¹⁶ m.