Annihilation is the most efficient conversion of mass to energy because:

  1. only half the mass is converted
  2. it produces no photons
  3. it releases chemical energy
  4. all the rest mass is converted
Answer

D) all the rest mass is converted

100% conversion. SLO P-11-F-28 · Understanding

Physics MCQ · More Nuclear and Particle Physics MCQs · Practise