1061. Water’s particles are excellent emulsifiers since they are:
A. Neutral
B. Polar *
C. Non-Polar
D. Covalent
1062. All of the ions that pass through crossed electric and magnetic fields without deflection have th same :
A. Mass *
B. Speed
C. Momentum
D. Energy
1063. The mass of a nucleus is equal to the sum of the masses of its constituent nucleons:
A. Greater
B. The same
C. Smaller *
D. Sometimes Greater and Sometimes smaller
1064. The Ionization energy of an atom relative to blinding energy of its nucleus is:
A. Greater
B. The Same
C. Smaller *
D. Sometimes greater and sometimes smaller
1065. Yukawa’s theory suggest that nuclear forces arrives through the exchange of :
A. Electrons
B. Protons
C. Neutrons
D. Masons *
1066. The Tunnel affect makes possible :
A. Alpha Decay *
B. -VE beta Decay
C. +VE beta Decay
D. Gamma Decay
1067. A nucleus with an excess of neutrons may decay radioactively with the emission of :
A. A neutron
B. A proton
C. An Electron *
D. A Positron
1068. The first phase of a nuclear reaction involves the formation of :
A. An Alpha Particle
B. A compound Nucleus *
C. An Isotope
D. A mason
1069. Unstable elementary particles heavier than the proton are called :
A. Leptons
B. K.Mesons
C. Strange Particles
D. Hyperons *
1070. A quantity not always conserve in the decay of elementary particles is :
A. Electric Charger
B. Lepton Number
C. Baryon Number *
D. Strangeness Number