The exchange particles for the weak force are very massive (about 100 times as massive as a proton). This would lead one to expect that the weak force would
A)act over a very long range.
B)act over a very short range.
C)only act on very massive particles.
D)only act on very light particles.
E)be transmitted at the speed of light.

Question

Quizplus · Accepted Answer

The weak force acts over a very short range because the massive exchange particles (W and Z bosons) limit the distance over which the force can effectively operate.

The Exchange Particles for the Weak Force Are Very Massive