(A) Decrease
(B) Increase
(C) Remains unchanged
(D) First decrease then increase
Author:
A quantity not always conserves in the decay of elementary particles is?
(A) Baryon number
(B) Lepton number
(C) Strangeness number
(D) Electric charge
Unstable elementary particles heavier than the proton are called?
(A) K Mesons
(B) Hyperons
(C) Leptons
(D) Strange particles
Among the following elementary particles , which one is never decays in free space?
(A) Protons
(B) Hyperons
(C) Neutrons
(D) None of the above
The first phase of a nuclear reaction involves the formation of?
(A) A compound nucleus
(B) A meson
(C) An Alpha particle
(D) An isotope
A nucleus with an excess of neutrons may decay radioactively with the emission of?
(A) A positron
(B) A proton
(C) A neutron
(D) An electron
The tunnel effect makes possible?
(A) Gamma Decay
(B) Alpha Decay
(C) Negative Beta Decay
(D) Positive Beta Decay
Yukawa’s theory suggest that nuclear forces arrives throught the exchange of?
(A) Electrons
(B) Protons
(C) Neutrons
(D) Mesons