Answer:
0.267 × 10⁻³
Explanation:
Given:
maximum permissible workday dose = 18 mrem
Weight of the laboratory technician = 54 kg
gamma rays absorbed = 2.6 mJ of 0.30 MeV
relative biological effectiveness (RBE) for gamma rays = 1.00
Now,
Radiation Absorbed Dose
also,
Roentgen Equivalent Man = rad × Q
here Q is the quality factor = 1 for gamma rays
thus,
Roentgen Equivalent Man = 4.8 × 10⁻³ × 1 = 4.8 × 10⁻³ rem
Therefore,
the ratio of the equivalent dosage received by the technician to the maximum permissible equivalent dosage will be
=
or
= 0.267 × 10⁻³
Answer:
The average distance between the Earth and the Sun is about 93 million miles. All of the planets, comets, and asteroids in the solar system orbit the Sun. The average distance between the Earth and the Sun is 92,955,807 miles.
<em>Hope this Helps!</em>
Because many objects in space don't radiate any optical (visible) radiation at all.
And other objects, like stars, radiate a lot of invisible radiation in addition to the
visible light from them. So the ability to detect and measure invisible radiation
makes it possible to learn a lot more about objects in space than we could if
we could only use their visible light.
2,3,5 are correct just took the test