A he-ne laser produces light of wavelength 633 nm with
A He-Ne laser produces light of wavelength 633 nm with intensity 1.09 103 W/m2, over a beam of cross-sectional area 1.04 mm2. How many photons per second are emitted by the laser?
________ photons/s
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a he-ne laser produces light of wavelength 633 nm with intensity 109 103 wm2 over a beam of cross-sectional area 104
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a particular reaction is spontaneous at 450k the enthalpy change for the reaction is 345 kj what can you conclude about
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