Title: Light from a laser forms a 1.31-mm diameter spot on a wall. If the light intensity in the spot is ...
Post by: guzmanmichelang on Dec 10, 2018
Light from a laser forms a 1.31-mm diameter spot on a wall. If the light intensity in the spot is 
what is the power output of the laser? Assume that all the light emitted by the laser hits the spot.
• 24.7 mW
• 17.9 mW
• 13.2 mW
• 21.3 mW
what is the power output of the laser? Assume that all the light emitted by the laser hits the spot.• 24.7 mW
• 17.9 mW
• 13.2 mW
• 21.3 mW
Title: Light from a laser forms a 1.31-mm diameter spot on a wall. If the light intensity in the spot is ...
Post by: Charline091486 on Dec 10, 2018
21.3 mW