A radiographer stands six feet from the x-ray source when performing a portable chest exam and receives an exposure of 2 mGy. If
the radiographer performs a repeat exam using the same technical factors standing at a distance of three feet from the source, how much exposure will be received?
The amount of exposure that will be received at 3 ft is 8 mGy
Explanation:
Here, we note that the amount of radiation exposure of the radiographer is given by the inverse square law. That is the amount of radiation exposure is directly proportional to the inverse square of the distance that is
Or New intensity = = 8mGy
Therefore, the amount of exposure that will be received at 3 ft = 8 mGy.
Because the Moon casts a smaller shadow than Earth does, eclipses of the Sun tightly constrain where you can see them. If the Moon completely hides the Sun, even for a moment, the eclipse is considered total.
The vector that point from point P1 to point P2 its found simply by taking the vector at which point P2 its located and subtracting the vector at which point P1 its located:
Isotopes are the elements having the same atomic number i.e same number of protons which in turn is equal to same number of electrons. Number of protons and electrons are equal as the atom is electrically neutral. So, the only option is A.