a-sound-wave-from-an-ambulance-siren-has-an-intensity-of-200-w-m2-at-25-m-suppos

Question

A light wave from a bulb has an intensity of 1.5 × $$10^{-2}$$ $$W/m^{2} at 25 m. $$Suppose the bulb radiates uniformly in all directions. Find the bulb's total power output.

Accepted Answer

118 W

Answer

1.5 W

Answer

37.5 W

Answer

72.8 W

A light wave from a bulb has an intensity of 1.5 × 10-2 W/m2 at 25 m. Suppose the bulb radiates uniformly in all directions. Find the bulb's total power output.

A light wave from a bulb has an intensity of 1.5 × 10^-2 W/m² at 25 m. Suppose the bulb radiates uniformly in all directions. Find the bulb's total power output.