Refraction Definition and 751 Threads

[SOLVED] Refraction Problem- very easy but need help . . . .

Homework Statement The index of Refraction for a diamond for red light, 656 nm, is 2.410, while that for blue light, 434 nm, is 2.450. Suppose white light is incident on the diamond at 30.0 Degrees. Find the angles of refraction for these two colors. Homework Equations sinr/sini = n2/n1 =...

Trying to relate Equation 4.6, 4.7, 4.8 from here: [PLAIN]http://physics.nmt.edu/~raymond/classes/ph13xbook/node35.html[/URL] Basically trying to relate the deviation angle, incident angle, refractive index and apex angle. 2. The equations are in the link. 3. My attempts are less than fit to...

Problem 1: A thin hollow glass sphere has a radius of 1 m. A coin is placed at the bottom of the glass sphere. 2.09 metre cube of a liquid of refractive index 1.5 is poured into the glass shpere. A person is viewing the object vertically. What is the apparent depth of the coin? Im not sure...

does anybody know formula for finding angle of refraction with given angles of incidence in the medium and the angle of refraction?

Red light travels from air into liquid at an angle of incidence of 390 and an angle of reflection of 170. Calculate the wavelength of the red light in the liquid if its wavelength in air is 750 nm can you give me some hint for this one too? :cry:

Light travels from medium C to medium D. The angle of incidence is larger than the angle of refraction. Which medium has the lower index of refraction? Explain your logic.

***** A Refraction of Light Question : Why Does Diamond Sparkle More? (Ans. ASAP please) I have thought about this question for a while now,but I can't figure out the answer: Diamond has a critical angle of 24 degrees. Crown glass has a critical angle of 42 degrees. Why does a diamond...

Hi, I'm currently working on a game of pool/snooker. Its all going great, but i have this problem when the balls hit each other. I can get them to bounce off the walls correctly, but that's because the walls are either vertical or horizontal...hitting a ball is more difficult. At the moment...

Homework Statement Imagine two media: one is thick air and the other is a liquid medium of some kind. The index of refraction of the air medium is 1.2 and that of the liquid medium is 1.47. You are standing in the air medium looking straight into the liquid medium. You observe an object...

Homework Statement The setup is a planar cross-section of a medium. The horizontal direction is 'x' and the vertical direction is 'y'. I fire a beam of light into this plane, starting at some positive y, at x = 0, and traveling horizontally in the x+ direction. I need to find a function n(y)...

A scientist notices that an oil slick floating on water when viewed from above has many different rainbow colors reflecting off the surface. She aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). The index of refraction of water is 1.33. The index of...

Hi, I need to know whether Refraction changes current focal length of a camera..I have a camera focused at the bottom of a water tank(without water). After filling water to the tank i cannot see the bottom anymore focused..I need to calculate how much should I move the camera vertically to...

We use only 2 boundary conditions in driving Fresnel's laws, whereas Maxwell's equations provided 4 conditions (2 were identical to other 2). What is the intuitive explanation for this redundancy? which boundary conditions turned out to be equivanlent to each other.

Snell's law[SOLVED] 1. A ray of light travels from air(which is given to be 1.0003 I also had it be N1) into a liquid. The ray is incident upon the liquid(n2) at an angle of 30 degrees. The angle of refraction is 22 degrees. Indices of Refraction. Medium. . . .N Vacuum...1.00 Air.. . . ...

I have found the relativistic mechanical index of refraction which I think is n = \sqrt{[( E - V + mc^{2})^{2}- (mc^{2})^{2}]/[( E + mc^{2})^{2}- (mc^{2})^{2}] Follow the same procedure as this thread https://www.physicsforums.com/showthread.php?t=176081&highlight=optico-mechanical...

I have though of a puzzling part of refraction that has caused a bit of a problem. it is that if the light slows down then where does it get the energy from to speed back up once it has left the medium it was refracted into?

Hi all, I would like to know whether my approach of solving for the direction vector of a refracted ray is correct. 1. Problem statement A ray of light is incident on an interface of two mediums. The incident ray has a unit direction vector v. i and r are the incident and refracted angles...

Homework Statement A tank whose bottom is a mirror is filled with water to a depth of 19.3 cm. A small fish floats motionless 7.50 cm under the surface of the water. What is the apparent depth of the reflection of the fish in the bottom of the tank when viewed at normal incidence...

Im trying to understand double refraction, but have certain doubts. One question is, that why does the direction of oscillation of the ordinary and extraordinary ray change their refractive indices? Why is it that when one component of the electric field is perpendicular to the optic...

Hey guys I'm new here and I'm lookin' for some help as I'm sure a lot of you come here for that reason as well. I did an experiment where I fill a 150 mL half full, place a pencil in the middle and move it sideways until it reaches the side of the beaker. Then I am to draw a ray diagram of what...

Homework Statement An underwater diver sees the sun 50 degrees above horizontal. How high is the sun above the horizon to a fisherman in a boat above the diver? Homework Equations n΄sinθ΄ = n¹sinθ¹ or, if that is confusing, n1sinθ1 = n2sinθ2 The Attempt at a Solution I...

Homework Statement A 1.0-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 60 degrees from the normal. What is the ray's direction of travel in the glass? Homework Equations n΄sinθ΄ = n¹sinθ¹ or, if that is confusing, n1sinθ1 =...

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.

https://www.physicsforums.com/showpost.php?p=899393&postcount=4 describes why photons are slower in some medium. After reading it, I've few more questions: When a photon hits an electron, if it absorbs the photon and reemits, here's my questions: 1. How does refraction possible? The...

Please Explain Me Refraction of light ! Helo everyone, I have gone through my textbooks which only comes to the conclusion that since the light travels at different velocity in different medium so it bends at the interfaces. This is something i can't really understand. It doesnot make anything...

Determine the time it takes for light to travel 54 cm through glycerine in an aquarium. Do I account for air, glycerine and glass?

Homework Statement A light ray enters a rectangular block of plastic at an angle 1 = 44.0° and emerges at an angle 2 = 79.0°, as shown in Figure P22.61. Figure P22.61 (a) Determine the index of refraction of the plastic. wrong check mark (b) If the light ray enters the plastic at a...

light refractions problem I don't even know where to start with this problem. Can someone please help me out? As shown in Figure P22.49, a light ray is incident normal to on one face of a 30°-60°-90° block of zircon(n= 1.923) that is immersed in water. Figure P22.49 (a) Determine the...

Homework Statement under what condition is the angle of incidence greater than the angle of refraction?and viseversa? and WHY? AND how come the speed of light slows down when it travels from a less dense to a more dense substance?and vise versa? Homework...

How to explain transmission, reflexion, refraction and diffraction at a atomic level. For example: 1 - how does light passes through a transparent material? 2 - what happens in the boundary of separation of two materials for light to be: partially reflected, partially refracted ad partially...

Homework Statement Suppose a convex lens is ground so that one surface has a radius of curvature of 30.0 cm and the opposing surface has a radius of curvature of 40.0 cm. The focal length is 34.2cm. What is the index of refraction of the lens? What kind of glass is the lens? Homework...

Suppose a convex lens is ground so that one surface has a radius of curvature of 30.0 cm and the opposing surface has a radius of curvature of 40.0 cm. The focal length is 34.2cm. What is the index of refraction of the lens? What kind of glass is the lens? Need help by using the formula...

Homework Statement In which of the following situations will light from a laser be refracted? a. traveling from air into a diamond at an angle of 30° to the normal b. traveling from water into ice along the normal c. upon striking a metal surface d. traveling form air into a glass of...

I tried to obtain refraction of light by sun's gravity by substitution of sun's gravitational field by aether with different speeds of light. I do not get right result. Where I am wrong? For light which travel close to the sun by direct trajectory, I get the following speed of light in...

I just wanted to ask a quick question that maybe someone knows off the top fo their head. How does the refraction angle of the Sun at the sunset vary as a function of the observer's height. i.e. if you are standing on a tower looking over the ocean, is the refraction deviation of the Sun at...

can you please explain some of these questions to me? Thanks. In the PR book, it defines vacuum as empty space and I don't really know what that means. Does it mean that there is nothing (no air molecules, no other gasses, etc.) in that space? (is the atmosphere of space a vacuum also?) I've...

A light beam passes from medium 1 to medium 2 with the latter being a thick slab of material whose index of refraction is n2. Show that the emerging beam is parallel to incident beam. Am I correct in assuming that the only way this is possible is to have the incident beam making an angle that...

According to Fermat's principle the path taken between two points by a ray of light is the path that can be traversed in the least time. So if the ray is refracted and if you take two points, one from before and one from after the refraction, the path taken between them was the one that takes...

Homework Statement Why do fish appear bigger when you look at them through a fishbowl? Homework Equations The Attempt at a Solution because objects in water appear bigger than they actually are? this has to do with change in the medium from air n1 to water n2?

Homework Statement At the shallow end of a swimming pool, the water is 70.0 cm deep. The diameter of the cone of the light emerging from the water into the air above, emitted by a light source 10.0 cm in diameter at the bottom of the pool and measured by an observer on the edge of the...

Hello I'm trying to solve a problem where I'm asked to find the optimum index of refraction for an antireflective coating on a piece of glass. In trying to derive an equation for it I keep coming across this in the internet (where 1,0, and s should be subscripts) n1=sqrt(n0ns) where n1 is...

Homework Statement A 4.0-m-wide swimming pool is filled to the top. The bottom of the pool becomes completely shaded in the afternoon when the sun is 20 degrees above the horizon. How deep is the pool?Homework Equations Snell's law (n1)sin(x1) = (n2)sin(x2) Index of Refraction of Air = 1 Index...

Hi, I'm working on a project on the Green Flash and have so far been building up a program to produce the 1976 US Standard Atmosphere. I have produced the density profile for the first 86km (which I'll assume to be enough for now) and now need to convert it to a refractivity index profile...

How does one measure the index of refraction of a liquid, more specifically the angle of refraction? I'm finding it's relationship to temperature. I can't just dip the protractor into the liquid( as a test medium I used water compared to air) and measure the angle that is in the water(either...

Refraction problem! Homework Statement A beam of white light is incident on the surface of a diamond at an angle Theta_a. Since the index of refraction depends on the light's wavelength, the different colors that comprise white light will spread out as they pass through the diamond. For...

Can anyone please prove that if d1=EF and if d2=EG and angle MEZ=HEF=angle of incidence and angle HEG = angle of refraction. Please! can somebody help me prove that d1/d2=refractive index taking sin i/sin r=refractive index (The glass slab is ABCD and is kept in vacuum)

i need an explanation for this situation. i've inserted an pingpong ball into a glass full with water (the glass is made out of thick glass if it matters somehow?). Now what happened is that the half of the ball that is in the water looks much bigger than the half that is not in the water...

This article is as good as any tutorial on the physics of negative index of refraction. It was co-written by John Pendry, who has been credited for inventing/discovering the metamaterial that exhibits this property.Zz.

hi.i m kinda new at this but i really need help in physics.i m stuck so much.ok i have tried this question but i don't get it even though i have followed the steps that is shown in the book. A layer of olive oil (n=1.47) floats on water. What is the critical angle for a ray directed from the...