Inverse Square Law Calculator

Formula

The formula to calculate the inverse square law is:

\[ \frac{I1}{I2} = \frac{D2^2}{D1^2} \]

Where:

\( I1 \) is the Initial Radiation
\( I2 \) is the Final Radiation
\( D2 \) is the Final Distance
\( D1 \) is the Initial Distance

What is the Inverse Square Law?

The inverse square law states that any physical quantity is proportional to the square of the distance from the source of the physical entity. It is commonly used in physics to describe the intensity of radiation, sound, and other phenomena.

Example Calculation

Let's assume the following values:

Initial Radiation (I1): 100 units
Initial Distance (D1): 2 meters
Final Distance (D2): 4 meters

Using the formula to calculate the final radiation:

\[ \frac{I1}{I2} = \frac{D2^2}{D1^2} \implies I2 = I1 \times \left(\frac{D1}{D2}\right)^2 = 100 \times \left(\frac{2}{4}\right)^2 = 25 \text{ units} \]

The final radiation (I2) is 25 units.