![subject](/tpl/images/cats/fizika.png)
Physics, 21.03.2020 11:23 MyaaaMoney
G Two radiation modes (one at the center frequency lIo and the other at lIO+?lI) are excited with 1000 photons each. Determine the probability density for stimulated emission (or absorption). If N 2 such atoms are excited to energy level 2, determine the time constant for the decay of N 2 due to stimulated and spontaneous emission. How many photons (rather than 1000) should be present so that the decay rate due to stimulated emission equals that due to spontaneous emission?
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 14:40
If you go to a nutrition store and buy a supplement, you can count on the fact that it is pure and safe because supplements are regulated, controlled, and inspected by the fda.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:30
In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
Answers: 3
You know the right answer?
G Two radiation modes (one at the center frequency lIo and the other at lIO+?lI) are excited with 10...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2020 18:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2020 18:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 13.11.2020 18:00
![question](/tpl/images/cats/fizika.png)
Physics, 13.11.2020 18:00
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 13.11.2020 18:00
![question](/tpl/images/cats/mat.png)
Mathematics, 13.11.2020 18:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 13.11.2020 18:00
![question](/tpl/images/cats/istoriya.png)