Select the correct answer.

A particle has two down quarks and one up quark. What is the charge of that particle?

A. [tex]\( +e \)[/tex]
B. [tex]\( -\frac{1}{3} e \)[/tex]
C. [tex]\( 0 \)[/tex]
D. [tex]\( -1 e \)[/tex]



Answer :

To determine the charge of a particle composed of two down quarks and one up quark, we need to know the individual charges of the up quark and the down quark.

1. The up quark has a charge of [tex]\(+\frac{2}{3}\)[/tex].
2. The down quark has a charge of [tex]\(-\frac{1}{3}\)[/tex].

We can calculate the total charge of the particle by summing the charges of its constituent quarks.

- Calculate the contribution from the two down quarks:
[tex]\[ 2 \times -\frac{1}{3} = -\frac{2}{3} \][/tex]

- Calculate the contribution from the one up quark:
[tex]\[ +\frac{2}{3} \][/tex]

Now, sum these contributions:

[tex]\[ -\frac{2}{3} + \frac{2}{3} = 0 \][/tex]

Thus, the charge of the particle is [tex]\(0\)[/tex].

The correct answer is:
C. 0