General Knowledge - Physics - Discussion

Neutrons are high-speed nuclear particles that have an exceptional ability to penetrate other materials. Of the five types of ionizing radiation discussed here, neutrons are the only one that can make objects radioactive. This process, called neutron activation, produces many of the radioactive sources that are used in medical, academic, and industrial applications (including oil exploration).

Because of their exceptional ability to penetrate other materials, neutrons can travel great distances in air and require very thick hydrogen-containing materials (such as concrete or water) to block them. Fortunately, however, neutron radiation primarily occurs inside a nuclear reactor, where many feet of water provide effective shielding.

Radioactive substance emit only alpha beta and gamma partials they are not a radiation.

We said that neutron are more penetrating from where this neutron came? please explain me.

Neutrons are not emitted by the radio active substance, but alpha, beta and gamma are emitted by radio active substance, just please explain me any other use of radio active substance, then why neutrons are not emitted by the radio active substance, why? any reason, if you know please explain me about that, thank you.

Here answer should be B because electromagnetic radiations are simply light waves that have velocity as c.

Option D correct.

If neutrons are emitting in a spontaneos fission process, that is not radioactive process. And as far radoiactive particales are three, alpa, beta, gamma. Neutrons not including this.

Radioactivity is the spontaneous emission of energy from unstable atoms.

What is radioactive process?

Neutron reside in the nucleus of the atom and it is heavy than other elementary particles hence it is imposssible to have a emission of neutron.

Neutrons can also be emitted like spontaneous fission of heavy element. Cf 252 emits fission neutron. Answer should be All