The range of two of the four force fields is infinite, and the range of the other two fields is finite. Therefore, the masses associated with the fields are, respectively,
A) zero, finite.
B) finite, zero.
C) infinite, finite.
D) finite, infinite.

Question

Quizplus · Accepted Answer

The range of a force field is inversely related to the mass of its mediator particle. Infinite range corresponds to zero mass (e.g., photon for electromagnetism), while finite range corresponds to non-zero mass (e.g., W and Z bosons for the weak force).

The Range of Two of the Four Force Fields Is