Author Question: The maximum permissible workday dose for occupational exposure to radiation is 26 mrem. A 55-kg ... (Read 25 times)

MirandaLo · **on:** Jul 29, 2018

The maximum permissible workday dose for occupational exposure to radiation is 26 mrem.

A 55-kg laboratory technician absorbs 3.3 mJ of 0.40-MeV gamma rays in a workday. The relative biological efficiency (RBE) for gamma rays is 1.00. What is the ratio of the equivalent dosage received by the technician to the maximum permissible equivalent dosage?
A) 0.32 B) 0.30 C) 0.25 D) 0.23 E) 0.28

Question 2

A goldfish bowl is spherical, 8 cm in radius. A goldfish is swimming 3.0 cm from the wall of the bowl. Where does the fish appear to be to an observer outside? The index of refraction of water is 1.33.

Neglect the effect of the glass wall of the bowl. A)

3.3 cm inside the bowl
B)

3.9 cm inside the bowl
C)

3.6 cm inside the bowl
D)

3.0 cm inside the bowl
E)

1.7 cm inside the bowl