Ahe-ne laser produces light of 633 nm wavelength, 1.5 mw power, with a cylindrical beam of 0.64 mm in diameter.
(a) what is the intensity of this laser beam?
(b) the damage threshold of the retina is 100 w/m2 . is this laser safe to view head-on?
(c) what are the maximum values of the electric and magnetic fields?
(d) what is the average energy density in the laser beam?
Answers: 1
Physics, 21.06.2019 22:30
If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.
Answers: 1
Physics, 22.06.2019 05:00
Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.
Answers: 1
Physics, 22.06.2019 05:40
The difference between a red shift and a blue shift has to do with wavelength frequency. t or f
Answers: 1
Ahe-ne laser produces light of 633 nm wavelength, 1.5 mw power, with a cylindrical beam of 0.64 mm i...
Biology, 08.10.2019 19:40
History, 08.10.2019 19:40
Health, 08.10.2019 19:40
Advanced Placement (AP), 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
History, 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
English, 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
Physics, 08.10.2019 19:40
History, 08.10.2019 19:40
Mathematics, 08.10.2019 19:40
English, 08.10.2019 19:40
Physics, 08.10.2019 19:40