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A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.80 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam. number of photons per second: photons/s

A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.80 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam. number of photons per second: photons/s

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### Photon Calculation for Helium-Neon Laser A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.80 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam. #### Calculate the number of photons per second: \[ \text{number of photons per second:} \quad \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \quad \text{photons/s} \]
Transcribed Image Text:### Photon Calculation for Helium-Neon Laser A 633 nm helium-neon laser puts out 4.00 W of power with a beam 5.70 mm in diameter. The beam is pointed directly at a pinhole which has a diameter of 1.80 mm. How many photons of light will travel through the pinhole per second? Assume that the intensity of the light is equally distributed across the whole area of the beam. #### Calculate the number of photons per second: \[ \text{number of photons per second:} \quad \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ \quad \text{photons/s} \]
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