So I have an assignment and I have no idea how to solve it. Our professor is worse at physics then half of the students so more or less 90% of the people aren't able to solve. (everyone has a different task so I can't take someone else's and send it) That's why I need your help. Here are the two tasks that need to be done.
E: Oh, and my deadline is in 28 hours.


1)
Two sferic mirrors, one concave, with a curvature radius of 25cm and one convex mirror, with a curvature radius of 50cm are set one facing another so their principal axis match. The distance between their vertices is 50cm. The object is set in the middle between the mirrors. A small curtain is blocking the light from falling directly onto the convex mirror and because of that the image is first created on the concave mirror and then on the convex mirror.
a) Where is the image of the object and what are its properties?
b) Where would the image be if we use a flat mirror instead of the convex one.
This also need to be solved graphically.



2)
This is the equation of an electromagnetic wave in vacuum.

What are the frequency, wave lenght, period, initial phase and the expression for the associated magnetic field (written both as vectors and by components)? What is the average value of the intensity of this electromagnetic wave?

Please don't come here just to boost your post count, because I really need help.

Thanks in advance and I'm sorry if I used a wrong expression for something.

I can give 'em a try tonight/tomorrow, but not gonna promise anything

E: already able to say that 2) is too much for me

Even one of them would mean a world to me.

For the first one just draw it on paper? Don't you have a book that explains how different mirrors form the image (in front or behind the mirror etc.)?

For the 2nd one just use this:

I don't really see what is so difficult? To me it looks like you don't even need to integrate or derivate anything. Just put the given numbers in equations wikipedia is full of and you get the desired results. Even the average intensity is probably square root of the maximum intensity or something.

Instead of asking others to solve your schoolwork for you at least ask questions that help us help you instead of us just giving you the right answers for 0 effort.

No, I need to draw it in Excel for some unknown reason and have the whole solution written in MathType.
Yes, I do have a book in pdf that does explain it for only one mirror or very simple two mirror cases (one flat mirror and no curtain), but it doesn't explain what happens when there are two and a curtain in front of one.

If it was as easy as putting it in an equation I would have already done it myself. The second one demands a bit more knowledge (to get the expression for the magnetic field) which I don't have, because as I already said, our professor is pretty bad.

For the first one - just draw it. With regard to the 'properties' it likely means would the image be upside-down?

I must write the whole solution, that's why I wrote that it "_also_ needs to be solved graphically".
That's what I meant by properties, but how did you get the conclusion? Did you calculate, draw, or used some logic?

Dude, it's your course that you get a bit of paper for being awesome enough to write up the silly questions your given.

For Phuq sake, learn to google the answers you need cus that's how life works in the real world if you expect to be employed with the quals your earning.

Your job in uni is to write an essay about how you got your answers, generally given to you if you bother turning up to classes.
Real world, sort the problem, do it yesterday, and if you phuq up, your fired !

Grow up, get with the program, get your shit together and learn how to answer the basic ( in the real world ) questions your given.

You'll learn that uni really is basic and simple compared to what you'll be facing if you want to do stuff for real..........

Don't think this is university. I'd say high school.
High school teaches you the answers. University teaches you to look for the answers. ( unless you study Media or similar).

Do you mean spherical mirror?

sferic = spherical yes

Stopped last night at 3 A.M. and continuing with the 1st one later today. Got an idea about it and gonna test it asap. If needed, I can show this to my flatmate since he studies physics at uni

Is the answer Fig Newtons?

This is college. My high school physics were take a formula, put the numbers in and that's it. They should teach us to look for answers but they dont teach us anything in physics unfortunately...
Stig thanks for trying and I wouldnt want to hurry you but my deadline is in 7 hours.

It begins to seem like I'm unable to give you any sensible help before your deadline. With more time perhaps, but for today... Nope, unless some miracles happen. (Even showed this to my flatmate and he had no clue about it)

Sorry that I couldn't provide any help with this

It's alright, I have managed to find some help and I think I'll solve the first one but I have no clue about the second one...

College=Uni ?

Google dude, really.......
Just learn how to structure a meaningful search.

Based on your question....
http://www.insula.com.au/physics/1279/L14.html\
http://www.physics.rutgers.edu/ugrad/227/HW13.pdf
http://web.monroecc.edu/manila/webfiles/spiral/8.EMWaves.pdf

Not my field but the info is all there, ( With the right search terms ), just improve your speed reading

I did this some 3 years ago in high school. Damn I should've remembered this .