For each quantity in the table below, write the symbol of the SI unit in which it would usually be measured.quantity unit symbolThe level of natural background radiation at the top of Longs Peak, outside of Denver, Colorado.

The unit 'Sievert' is used to measure:Question 52Select one:a.Radiation source strengthb.Radiation dosec.Radioactivityd.Radiation intensity

Write a note on Radiation pattern measurement.

.Name the SI unit of i) Amount of substance ii) Density iii) Electric Current iv)Luminous Intensity.

Which pieces of apparatus can you find in a laboratory? What is a physical quantity? What are the SI base units?

Match each unit used in dosimetry to its definition.Group of answer choicesSI unit of absorbed dose, equal to 1 joule of energy absorbed per kilogram of materialUnit of radiation exposure, equal to the production of 2.58x10-4 coulombs of charge produced by the radiation per kilogram of dry air through which the radiation passesSI unit of activity, equal to one radioactive decay per secondOlder unit of activity, defined to be 3.7x1010 transformations per second, which is approximately the activity of one gram of radiumUnit relating absorbed dose to the degree of biological damage caused by a particular type of radiation