Match List-I with List-II and select the correct answer from the codes

1.	Match List-I with List-II and select the correct answer from the codes given below.List-IList-IIA. Zero mass1. PositronB. Fractional charge2. NeutrinoC. Fractional spin3. QuarkD. Integral spin4. Photon Codes:
Answer» The correct option is. (A) Explanation: Quarks have fractional electric charge values– either 1⁄3 or 2⁄3 times the elementary charge. The positron has an electric charge of +1e, a spin of 1/2, and has the same mass as an electron. A neutrino is an electrically neutral, weakly interacting elementary subatomic particle with half-integer spin. All evidence suggests that neutrinos have mass but that their mass is tiny even by the standards of subatomic particles. Their mass has never been measured accurately. Photon has zero mass and rests energy

Match List-I with List-II and select the correct answer from the codes given below.List-IList-IIA. Zero mass1. PositronB. Fractional charge2. NeutrinoC. Fractional spin3. QuarkD. Integral spin4. Photon Codes:

Answer»

The correct option is. (A)

Explanation:

Quarks have fractional electric charge values– either 1⁄3 or 2⁄3 times the elementary charge.

The positron has an electric charge of +1e, a spin of 1/2, and has the same mass as an electron.

A neutrino is an electrically neutral, weakly interacting elementary subatomic particle with half-integer spin. All evidence suggests that neutrinos have mass but that their mass is tiny even by the standards of subatomic particles. Their mass has never been measured accurately.

Photon has zero mass and rests energy

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