Refraction Definition and 726 Threads

Hello, will refreactoin index of water or any material will change its refreaction index when temperature changes? What make the speed of light slower in air compare to vacum.

A cylindrical material of radius R = 2.00 m has a mirrored surface on its right half, (as in figure that i have attached below). A light ray traveling in air is incident on the left side of the cylinder. If the incident light ray and exiting light ray are parallel and d = 2.00 m, determine the...

A light ray traveling through a glass medium, index of refraction1.52, is incident on the boundary between the glass and water, index of refraction 1.33 What is the critical angle for the glass at this boundary? What would the critical angle be if the incident medium was air instead of water...

Here is the question: Violet light has a frequency of 7.5 * 10^14 hz and travels from air to glass at an angle of 30 degrees. The index of refraction for violet light is 1.54. A) Find the angle of refraction B) Find the wavelength in air C) Find the wavelength in glass D) What is the...

If Sin(theta r)/Sin(theta i) is reversed from Sin(theta i)/Sin(theta r) = n, what does this mean? I'm quite confused since I'm doing a physics lab, and the class was told to make a graph where we measured angles with polar paper, pins and plexyglass. Could it possibly the index of refraction...

I'm really not sure how to figure these 3 problems out. Can someone please help me. Thanks. 1) A converging lens has a focal length of 85 cm. A 14-cm-tall object is located 121 cm in front of this lens. (a) What is the image distance? (b) What is the image height? Be sure to include the...

In this figure the path of the light passes from air to glass. Calculate the index of refraction n1 = air = 1 n2 = glass = ? Sin theta 1 = 30degrees sin theat 2 is = 20 degrees formula used n2 = n1*sin theta 1 / sin theta 2 sin of 30/ sin of 20 = n2 = 1.46 is this correct hope the...

A ray of light strikes an interface between materials 1 and 2 and enters the new material(2). The angle of incidence is 40 degrees. The index in material 2 is 1.5 times that of material 1. The refraction angle is ( in degrees):

? gravity and refraction I don't know if this is silly, but does gravity refract us towards the earth? :confused:

Another question in the exam today was "What property of light changes when light moves between different mediums, its wavelength of frequency?". I had to flip a coin on this one (like everyone else, this was not taught in class) and went with frequency.

Question: One of the beams of an interferometer, as seen in the figure below, passes through a small glass container containing a cavity D = 1.40 cm deep. When a gas is allowed to slowly fill the container, a total of 230 dark fringes are counted to move past a reference line. The light used...

Numerous texts I've read on eye anatomy/physiology claim that it is the cornea that is responsible for most of the eye's refractive power. Can someone perhaps explain to me how this could be the case? I would have thought that, considering that the tangents to the points of entry and exit of a...

Refraction problems due Midnight! Problem 13. A ray of light traveling in air strikes the midpoint of one face of an equiangular glass prism (n=1.65) at angle of exactly 30.0 degrees. Trace the path of the light ray through the glass and find the angle of incidence of the ray at the bottom of...

problem 4. A ray of light traveling in air strikes a flat 2.00 cm tick block of glass (n=1.50) at an angle of 25.6 degrees with the normal. Trace the light ray through the glass, and find the angle of refraction for light passing from air to glass. Answer in degrees. Note: I don't know...

How do u figure out the ratio of the refraction index if you have to unknown materials, that of which, one is 1.25 greater than the speed of sound.

What does light refraction have to do with the sky being blue (or any color for that matter)? Thanks for any replies.

I did a lab in school where I took a triangular prism and shined light though it. I measured the angle of incidence and angle of refraction for three different angles. The lab question first told me to find the index of refraction of the prism using the two angles. That was easy. The next...

Hi, As the part of a science project, I'm trying to refract communicational radio-waves towards a point. I first thought about using a lens, but because of double refraction when passing through a lens, relatively little refraction is achieved. I thought that if I could create a bubble of...

Hello everyone, I am reviewing for a test tomorrow, and I seem to have come across what would seem like an easy problem, but its answer has eluded me for the time being. I am hoping you guys can help. Horizontal rays of red light (660nm in a vacuum) and violet light (410nm in a vacuum)...

Hi all. I just have a few questions regarding light refraction and reflection. At sunset, the sun seems to be higher in the sky than it really is- correct? What causes this? Which color of light is refracted least by a glass prism? How do each of the colors separate through a prism to...

I have a simple question to which, I assume, the answer will be quite complicated. I asked my physics teacher this question and all he would say was, "It is known." So without beating me to death with physics can anyone tell me why waves diffract? For instance, electron diffraction around a...

So what is it? This is not a homework question. But I anticipate a good discussion.

I've seen the diagrams they write up talking about refraction for ages .. where a light ray goes into a different medium of higher index of refraction at an angle, and then the light ray is bent. And that is used to illustrate Snel's law. I guess I haven't paid close enough attention! I'm...

examples of refraction being abrupt and another that is gradual. been thinking and nothing have popped in my mind? easy examples are ok as long as i get it :)

I need to know the refraction number as well as the density of conventional Polyethylene PE (not HDPE), but i didn't find them anywhere. Can you help me? Thanks Tim

Can someone give me the formulas for single a two slit defraction of light. And please explain what te variables mean. Are these right? Wave length = xd/L Wave length = yw/L If these are right can someone please explain what the variable stand for because...