When it comes near a heavy nucleus,a gamma ray,which is a high energy photon,can "disappear," and in its place there will be produced an electron and a positron,which both have mass.This pair production is an example of
A)time dilation.
B)length contraction.
C)the equivalence of mass and energy.
D)the principle of relativity.
E)none of the above.

Question

Quizplus · Accepted Answer

Pair production is an example of the equivalence of mass and energy, as the high energy gamma ray is converted into particles with mass, specifically an electron and a positron. This is a result of the famous equation E=mc², which demonstrates that mass and energy are interchangeable.

When It Comes near a Heavy Nucleus,a Gamma Ray,which Is