There 2 electrons in an atom can share the quantum numbers
n=2, l=1 and ml=1. The correct answer between all the choices
given is the last choice. I am hoping that this answer has satisfied your query
about and it will be able to help you.
Energy of a photon = hc/λ
3.65 x 10^-19 = 6.626 x 10^-34 x 2.99 x 10^8/λ
λ = 6.626 x 10^-34 x 2.99 x 10^8 / 3.65 x 10^ -19
= 5.42 x 10^-7 m.
Hence wavelength of photon is 5.42 x 10^-7 m.
Hope this helps, have a great day/night ahead!
Answer:
6.47 M (3 s.f.)
Explanation:
Please see the attached picture for the full solution.
Answer 1) Option D : Discrete
Explanation : As in the example the scientist studies about the effects of growing human populations on the biodiversity which is found in a region, and where each region was selected had a different population density of humans from 1 to 10 million per 10 square miles. Then in each region the number of different species that can be found was recorded. So here the numerical data was collected for different regions. So, we can conclude it as discrete because when the variable takes on a countable number of values it is called as discrete.
Answer 2) Option D : The entertainment industry
Explanation : When people had enough time and money with them there was no need of creating the communications industry as it was a need not a luxurious thing. With the creation of Internet industry it is somewhat irrelevant. They had enough of time and money so building a labor industry seems to be a lame choice. So, the option of entertainment industry suits the best.
