Gamma Rays

Question 1

A Gamma ray may be emitted:

A- Following alpha emission
B- following beta emission
C- following either alpha or beta emission
D- By itself or following either alpha or beta emission

Answer 1

C- following either alpha or beta emission

Question 2

When an a particle is emitted , the atomic mass changes by:

A- minus 2
B- Zero
C- minus 4
D- Plus 4

Answer 2

C- Minus 4

Question 3

In gamma radiography radiation intensity is proportional to :

A- Source activity
B- Half life
C- Exposure time
D- The square to the source to film distance

Answer 3

A-source activity

Question 4

The radiation spectrum produced by a gamma ray source is :

A- Continious –all wavelengths represented over a wide range
B- Discreete – made up of several specific wavelengths
C- Either a or b
D- None of the above

Answer 4

B- Discrete

Question 5

A beta particle is a high velocity

A- electron
B- helium nucleus
C- Proton
D- Neutron

Answer 5

A- Electron