Question about Barska Optics Barska 10-40x50 Ao Varmint Riflescope, Black Matte, Mil

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How do i solve for reflection and refraction in physics

What r the formulas and how do i know which one to use

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  • knuclebuster May 11, 2010

    What is the actual issue? Your question says; "how do I solve for 'reflection' and 'refraction in..." and " what r the formulas and how do i know which one to use".

    Please provide more info.

    "Reflection" sounds like you are possibly getting reflections at both or one end of the scope. A rubber eye cup at the Ocular lens(the part of the scope where your eye looks through) and a shade tube at the Objective Lens will eliminate reflections on the surface of those lens. "Refraction" is the bending of a ray of light which will occur when light passes through one medium, such as glass, to another which happens when light passes through the objective lens to the Ocular lens and to your eye.

    If you will provide more info as to your issue, I'm certain there's an answer.

    In the meantime go to; or (no, I am not a rep. or have anything to do with either site) there you will find helpful scope terms/definitions that may also answer your question.

    I can also help you 'Zero' your scope to get it on target.

    What cal. rifle is it mounted on?



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Posted on May 07, 2009


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Need to know how to use the telescope after it is setup

Lorraine, join a club or get instruction book. An optical telescope which uses lenses is known as a refracting telescope or a refractor; one which uses a mirror is known as a reflecting telescope or a reflector. Besides optical telescopes, astronomers also use telescopes that focus radio waves, X-rays, and other forms of electromagnetic radiation.

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What does reflect mean

The direction of light can be changed in 2 ways. One way is refraction which is usually done by a lens (eyeglasses do this). The other is reflection, most often done by a mirror. Telescopes are almost always based on reflection and/or refraction designs. A reflective telescope has at least one curved mirror, often 2 curved mirrors which focus light by reflecting a larger area of natural light on a smaller spot.

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If the angle of the light striking a substance is 32.0 degrees and the angle inside the substance is 15.0 degrees what is the index of refraction

Let i be the measure of the angle of incidence; let r be the measure of the angle of refraction. Both angles are measured from the normal to the surface at the incidence point. Let n_i be the index of the first medium where the incident ray lies. Let n_r be the index of refraction of the second medium.
The law of refraction states that n_i*sin(i)=n_r*sin(r)
Assuming that the first transparent medium is air, we have n_i=1. Solving for n_r we find
For i_r=32 degrees, and r=15 degrees

May 22, 2013 | Office Equipment & Supplies

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I have the Linksys WRT54G router hooked up thru Ethernet to my desktop PC with Windows XP. I go thru a cable modem to the internet. I have 2 laptops, both with Windows Vista on, wirelessly linked to to the...

Low or poor signal is mainly caused by the following major factors:

Going Around Physical Obstructions
Wireless networks are also susceptible to obstructions that may lead to low signal. Often, the signal gets reflected, refracted or absorbed by the obstruction.

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I want to view construction diagram or a diagram that can explain Reflex mirrir lens for digital slr camera.

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How to make a homemade refracting telescope

There are several do it yourself projects on the internet like this one:

and this

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Opengl code

OpenGL doesn't handle photonics or any other low-level physics - you'll either need a raytracer, such as POVRAY or Blender, or you'll have to write the physics yourself, to emulate light rays of varying colours (I recommend using a HSL colour space for your physics, only translating to RGB when rendering the frame).
The refraction of a ray at the interface of the prism and the "air" can be calculated using Index of Refraction, correction factor to account for different refraction dependent on frequency (Hue) and a random number generator to emulate slight scattering.

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What is difference between reflection and refraction?

Here is refraction

Refraction is the bending of light as it passes from one substance to another

Here is reflection

Reflection occurs when light changes direction as a result of "bouncing off" a surface,

i think the definitive difference is a refraction is a bend in the light where a reflection is a redirection of it

GL :)

Dec 29, 2008 | Barska Optics Barska 10-40x50 Ao Varmint...

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