irradiance-floor-three-row-scan - Electromagnetic Radiation Pressure and Momentum Step by Step

Source power is scanned below, at, and above an irradiance floor. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

Irradiance is scanned against a useful floor

Beam area stays 6 square meters while source power is 12 W. The rendered quotient gives 2 watts per square meter which is below the 4 watts per square meter floor.

I=P/A=12/6=2\ \text{W}/\text{m}^{2}

Irradiance is scanned against a useful floor

Beam area stays 6 square meters while source power is 24 W. The rendered quotient gives 4 watts per square meter which is at the 4 watts per square meter floor.

I=P/A=24/6=4\ \text{W}/\text{m}^{2}

Irradiance is scanned against a useful floor

Beam area stays 6 square meters while source power is 36 W. The rendered quotient gives 6 watts per square meter which is above the 4 watts per square meter floor.

I=P/A=36/6=6\ \text{W}/\text{m}^{2}