Problem P. 3794. (April 2005)
P. 3794. In an experimental device where controlled nuclear fusion is generated, a solid-state laser emits infrared light in 1.1.10-11 s at the wavelength of 1060 nm with a power of 1014 W. For comparison: a school He-Ne laser emits red light at the wavelength of 633 nm with a power of 10-3 W. For how many days should the He-Ne laser work to emit the same number of photons as the solid-state laser does in 1.1.10-11 s?
Deadline expired on 11 May 2005.
|117 students sent a solution.|
|3 points:||94 students.|
|2 points:||14 students.|
|0 point:||9 students.|