Optic Definition and 121 Threads

Well, this is the question from the end term exam of the Optic 1 year 1 ago that I got from the senior, we (me and my friends) get confused. I try to slove this problem by Geometry Optic but the final equation can't slove (if sloved it will be loooooong to slove on the short time). I think...

Homework Statement Monochromatic light passes through 2 narrow slits 0.25mm apart and forms an interference pattern on screen 1.5m away.If light with a wavelength of 680nm is used,what is the distance between center of central maximum and center of the third-order bright fringes? Homework...

Hi, Does any of you know any commercially available fiber optic - beam splitter? It is very crucial for my experiment where I distribute an electromagnetic beam from one laser source (infrared) to two waveguides.. Since I am coupling using fibers, I require a fiber optic based beam...

If a lens is moved towards the object from a distance of 20cm to 15cm, the magnification of the image remains the same. What is the focal length of the lens? Sorry I am new here so please forgive me if I have violated any rules.:cry:

I hope this post in the appropriate forum. I have a spectrograph and a CCD imaging chip that I am using for an optics experiment. The light coming into the spectrograph is through a 10 micron fiber optic. In order put the light on the CCD imaging chip the way I want it, I believe I need to...

looking for information about phenomena when light through fiber out before through and photon reverses at exit time to negate entering photon leading to equilibrium of energy transfer. think it was coated with iridium or something. not sure. saw it reported on shortnews.com about a year or so...

Question: A ray of light enters a light fiber at an angle of 15degree with the long axis of the fiber. Calculate the distance the light ray travels between succesive reflections off the sides of the fiber has an index of refraction 1.6 and is 10^{-4}mm in diameter.

I have this project for Physics 11, we have to make some sort of optic device using our knowledge of concave/convec mirrors and lens. We have to make it and briefly describe and ****, it's due on friday and i haven't gotten anything. I was wondering if you guys know any good ideas or have a good...

So, because light is so fast and fiber optic cables can carry 3 different signals at at time and travel at the "speed of light"; why don't we have the technology to develop a computer that uses all fiber optics instead of wires or optics and wires (if your lucky) I'm sure that if we did know...

Hi everyone This is my exercise. Calculate the longitudinal magnification of an object of length L placed along the principal axis of a lens (of focal length f) with the end B at distance H from the lens :confused: I've attached the image of this problem I prefer the solution next...

Hellooo Friends Tell me what is optic solar reflector. Recommend me online literature

Hello, I' m an italian student, so exscuse for my bad english. My problem:

the question is: a mircroscope is focused on a black dot. when a 1.00-cm-thick piece of plastic is placed over the dot, the microscope objective has to be raised 0.40 cm to bring the dot back into focus. what is the index of refraction of the plastic... I spent a lot of time on this...

An empty flask containing some chalk pieces is placed inside a beaker full of water. When look horizontally, the flask appears to be larger than it really is. why? and when looked verticlaly down, the content of the flask shrinks, or even disapperas. why?

there's a question which is confusing me a little bit; it is known and verified that the speed of light is about 300000km/s well, as we look through the stars which are very distant from us in thousands light-years we notice that we can view them spontaneously. thus, it doesn't take much...

Electrical and fibre optic... Why is it that a fibre optic cable must boosted less frequently than an electrical signal in a copper wire, I understand that there will be resistance in the wire and thus the voltage will drop the further you go, but surely there will still be the changes in...

Don't worry; this time no metaphysic question. I am just looking for good links and informations (general physics) concerning bilinear optic (birefringence; Cotton effect;...) Thank you if someone can help.

I only found "photoelectric" as his important contribution in optic anybody know what else related to photonics? Thx...

fibre optic amplifier?? anyone heard of fibre optic amplifier before or not?

Does anybody know what the SC and ST connectors stand for [?] thanks joe

I was asked this question Why is there an ideal wavelength for propagation in optic fibres? a. Light absorption losses are minimum b. The fibre has its greatest transparency at the ideal wavelength c. Rayleigh scattering is greatest at this wavelength d. Total internal reflection...