A `1 MeV` positron encounters a `1 MeV` electron travelling in opposite direction. The total energy released is (In `MeV`)

One Mev positron encounters one MeV electron travelling in opposite direction. What is the wavelength travelling in opposite direction. What is the wavelength of photons produced, given rest mass energy of electron or positron =0.512MeV ? Take h=6.62xx10^(-34)J-s .

1 MeV equals

The rest mass energy of electron or positron is (in MeV )

1.00 kg of .^(235)U undergoes fission process. If energy released per event is 200 MeV , then the total energy released is

1.00 kg of .^(235)U undergoes fission process. If energy released per event is 200 MeV , then the total energy released is

The binding energy/nucleon of deuteron (""_(1)H^(2)) and the helium atom (""_(2)He^(4)) are 1.1 MeV and 7MeV respectively. If the two deuteron atoms fuse to form a single helium atom, then the energy released is