Light from a laser forms a 1.31 mm diameter spot on a wall.If the light intensity in the spot is 3.69 x 10⁴ W/m²,what is the power output of the laser?

Question

Quizplus · Accepted Answer

The power output of the laser can be calculated using the formula: Power = Intensity x Area. The area of the spot is π*(d/2)^2, where d is the diameter in meters. Substituting the given values, the power is approximately 49.7 mW.

Light from a Laser Forms a 1