Sum of the masses of constituent nucleons as compared to the mass of the resultant nucleus is______________?

A. Smaller
B. Greater than 82
C. Same
D. Sometimes smaller some times greater

An alpha particle is emitted from 88Ra226. What is the mass and atomic number of the daughter nucleus ?

A. 224 – 84
B. 220 – 80
C. 222 – 86
D. 226 – 87

The unit of radioactivity curie is equal to_________________?

A. 3.74 x 109 disintegration per sec
B. 3.70 x 1010 disintegration per sec
C. 3.55 x 1010 disintegration per sec
D. 3.60 x 1010 disintegration per sec

The unit of radioactivity curie is equal to________________?

A. 3.74 x 109 disintegration per sec
B. 3.70 x 1010 disintegration per sec
C. 3.55 x 1010 disintegration per sec
D. 3.60 x 1010 disintegration per sec

During the fission process a large amount of______________?

A. Heat energy is released
B. Nuclear energy is released
C. Chemical energy is released
D. Light energy is released

Ina liquid metal fast breeder reactor, the type of uranium used is______________?

A. 92u235
B. 92u238
C. 92u234
D. 92u239

For chain reaction to build up the size of the radioactive target should be______________?

A. Greater than the critical size
B. Less than the critical size
C. Equal to the critical size
D. All of above can build up a change reaction

Antimatter consists of ______________?

A. Antiproton
B. Antineutron
C. Positron
D. All of above

Neutron and proton are commonly known as______________?

A. Nucleon
B. Meson
C. Boson
D. Quartz

Which one of the following radiation possesses maximum penetrating power ?

A. X-rays
B. B-rays
C. Γ-rays
D. All have the equal penetrating powe