Modern Physics Question

[محمد عمر]

AA All,

Here is a topic for all the Modern Physics Questions. Add any questions concerning Modern Physics into this post.

Best regards,
Mohammed Omar

[Δђ๓єđ Иαβเℓ]

ياريت الناس تقرا التوبيك ده قبل ما تحط اي اسئلة وأي سؤال يخالف اللي ذكره البشمهندس محمد سيتم حذفه مباشرة دون الرجوع للعضو

http://www.h3sonline.com/forums/showthread.php?t=12268 (http://www.h3sonline.com/forums/showthread.php?t=12268)

[M7MD'z]

plz eng. m7md

related to the first lecture by dr 7atem ...

will we concern with the intoduction to the chapter ?? that part which concern with scientist and their achievments ..?

also

i hope you'd tell us the parts that dr 7atem cancelled refering to the uploaded lectures here

and

in photon charge questions

is the wave length of the colours will be given isa or not ?

[M7MD'z]

to make it easy ...
what is the right and what is the wrong from the following

( unexplained answer will not be added to score :P )

- ch.3 ... modern phy. .... all of it is cancelled
- p33 harmonic oscillator
- p35 atomic structure
- p39 pauli exclusion
- w compton effect


that's all ? or there are more ? " i hope "

[محمد عمر]

AA Shabab,

I can answer your questions concerning something you do not understand about the subject, but I do not know any information about your lectures or syllabus content.

I asked these questions to Dr Hatem and he told me any one who attended the lectures would find all these questions answered. So better check out these stuff with some one who has been attending the lectures. Help each other guys.

Regards,
Mohammed Omar

[M7MD'z]

thx eng. mohammed


is the wave length of the colours will be given isa or not

[محمد عمر]

I guess you need not memorize the frequency of all the colors. Just know the range of wavelengths for visible light is from about 420 nm to 720 nm. I guess any additional wavelengths need not be memorized unless stated explicitly in the lectures.


thx eng. mohammed

[7abobs]

plz i can't ans that question
how many sets of quantum no. of electron for which n=1, n=2

[محمد عمر]

Are you talking about the hydrogen atom??

If so, then remember that the Hydrogen atom has 4 quantum numbers:
1.n: Principal quantum number, could take values: 1,2,3,....
2. l: Orbital quantum number, could take values: 0,1,2,...., n-1. i.e. n values
3. m: Magnetic quantum number, could take values: -l,-l+1,-l+2,...,-1,0,1,....l-1,l i.e. 2l+1 values
4. ms: Spic quantum number, can either be -1/2 or + 1/2.

The possible sets of quantum numbers can be counted this way:

For n = 1,
We have l = 0
We have m = 0
and ms = -1/2 or + 1/2

Therefore we have 2 possible quantum numbers

For n=2,
We have l = 0 and 1
We have m = -1,0,1
we have ms = -1/2 or +1/2

Therefore we have 8 sets of quantum numbers
6 for l =1 [2x3]
and 2 for l=0 [2x1]

and so on.

You can find it written pretty much clearly in a table in your book. Let me know if you could not find it and I would upload it.

Let me know if you find anything not clear in what I say





plz i can't ans that question
how many sets of quantum no. of electron for which n=1, n=2

[VAN]

اثبات معادلة شرودنجر علينا

[Sakrawy]

اثبات معادلة شرودنجر علينا


نفس السؤال

[محمد عمر]

I said before I do not know whats on you and what is not. Just stick to what has been given in the lectures.

Regards,
Mohammed Omar

[dakyduke]

relation between velocity & speed of light how to use equations if v/c=0.0.1

[iceman-x9]

Are you talking about the hydrogen atom??

If so, then remember that the Hydrogen atom has 4 quantum numbers:
1.n: Principal quantum number, could take values: 1,2,3,....
2. l: Orbital quantum number, could take values: 0,1,2,...., n-1. i.e. n values
3. m: Magnetic quantum number, could take values: -l,-l+1,-l+2,...,-1,0,1,....l-1,l i.e. 2l+1 values
4. ms: Spic quantum number, can either be -1/2 or + 1/2.

The possible sets of quantum numbers can be counted this way:

For n = 1,
We have l = 0
We have m = 0
and ms = -1/2 or + 1/2

Therefore we have 2 possible quantum numbers

For n=2,
We have l = 0 and 1
We have m = -1,0,1
we have ms = -1/2 or +1/2

Therefore we have 8 sets of quantum numbers
6 for l =1 [2x3]
and 2 for l=0 [2x1]

and so on.

You can find it written pretty much clearly in a table in your book. Let me know if you could not find it and I would upload it.

Let me know if you find anything not clear in what I say






this question was in last year's exam but the answer to it was no where to be found in the lectures of Dr. Hatem... may be it's not on us this year
:wtt:

[Sakrawy]

this question was in last year's exam but the answer to it was no where to be found in the lectures of Dr. Hatem... may be it's not on us this year
:wtt:




I think so too

[VAN]

جدول الOPERATOR بتاع الابساى نحظه ولا نعمل فيه ايه بالظبط

[iceman-x9]

ya 3am maho fel formula sheet ya3ny

[VAN]

فين ده مفيش جدوال

[iceman-x9]

mesh enta asdak dah wala eh

http://h3sonline.com/forums/up/uploads/c493a13583.jpg (http://h3sonline.com/forums/up/)

[ahmed2010]

mesh enta asdak dah wala eh

http://h3sonline.com/forums/up/uploads/c493a13583.jpg (http://h3sonline.com/forums/up/)


هى الحاجات دى علينا ؟