Question

Given El = 2000 + (1000 x log E), what will the El equal if the exposure (E) is 2 mR?

a 2300
b 2500
c 2400

Answer 1

To find El when the exposure (E) is 2 mR, we plug the value into the equation El = 2000 + (1000 x log E) to get El approximately equals 2300.

Step-by-step explanation:

The question involves solving an equation that includes a logarithm. With the given equation El = 2000 + (1000 x log E), and the exposure (E) is 2 mR, we substitute E with 2 to evaluate El.

Using a calculator, we find:

• log 2 = 0.3010 (using common logarithm, base 10).
• El = 2000 + (1000 x 0.3010).
• El = 2000 + 301.0.
• El = 2301.0.

Since we need a rounded whole number as in the options given, we can say that El equals approximately 2300.