Pair production cannot take place in a vacuum as ________ is not conserved ?

Related Mcqs:

Average energy required to remove one nucleon from the nucleus is called__________________?

A. Binding energy per nucleon B. Energy of decay C. Destruction energy D. All of above...

The path of alpha particle is_______________?

A. Rectilinear B. Curved C. Zig-zag or erratic D. Elliptical...

Average distance covered by alpha particles in the air before its ionizing power ceases is called its_________________?

A. Trajectory B. Range C. Firing level D. Limit...

The most useful tracer is_________________?

A. Sr-90 B. I-131 C. CA-41 D. C-14...

The maximum safe limit dose for persons working in a nuclear power station is ________________?

A. 1 rem per week B. 5 rem per week C. 4 rem per week D. 3 rem per week...