Investigating What Factors Affect Reflection Prediction: The angle of incidence is proportional to the angle of Refraction. Angle I Angle r 10 6 20 14 30 21 40 28 50 34 60 39 70 44 80 47 Results: Angle I Angle r 10 8 20 15 30 20 40 28 50 33 60 38 70 42 80 47 Averages of both results: Angle I ======= Angle r 10 7 20 14.5 30 20.5 40 28 50 33
An experiment to find the acoustic impedance of paraffin and water Abstract The speed of sound through paraffin and water was measured, and came close to the generally expected value. The speed in was calculated as 1458.36±16.2ms^(-1) in water and 1212±23.7ms^(-1) in paraffin. Then the density of these two liquids was measured, and combined with the speed of sound to find the acoustic impedance. . The acoustic impedance of water was 1575±29kgm^(-2) s^(-1) and the acoustic impedance of paraffin
Refraction Refraction is what happens to light when it passes from one medium to another. For example, things appear differently from the bottom of a swimming pool than on the top. Simplistically, refraction is the bending of light. The explanation for this phenomenon, however, can be described with light as rays and light as waves. No matter the case, it is important to remember that the speed of light is constant in every homogeneous medium, regardless of shape, size or form. The index of
Investigating Refraction Aim: Find the critical angle and refractive index for plastic using a graphical treatment for my results. Introduction: The Refractive Index is how the much a material bends the light. In this experiment I will be looking at the how much the angle of incidence gets refracted and I will multiply my results by sine. I will plot a graph from my results and, using a line of best fit, I will calculate the size of the angle of incidence in order for the refracted angle
Refraction of Light Aim: To find a relationship between the angles of incidence and the angles of refraction by obtaining a set of readings for the angles of incidence and refraction as a light ray passes from air into perspex. Introduction: Refraction is the bending of a wave when it enters a medium where it's speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media
The Human Eye: Just what exactly goes on in our eye to produce images? Why can't some people see as well as others? Well my friend, look no further... the answers to your 2 most burning questions are about to come! First of all, what happens when we see images? Our eye acts as a simple model of a lens system. The average adult eye is about 25 mm in diameter. As light enters our eye, it is refracted first through the cornea which does about 80% of the refracting. The crystalline lens which
predict the angle at which it is reflected off of the surface. This is known as the ‘Law of Reflection’ and it states: “… the incident ray, the reflected ray, and th... ... middle of paper ... ...development. Within the various applications of optics investigated, it is clear that while technology has progressed and advanced over time, optical devices such as mirrors, prisms and lenses will still be very much in use in the future. The fundamental properties of these instruments are utilised and
. After reflection of the two beams, they recombine at the beam-splitter. Depending on the location of the moving mirror, difference in the optic paths are generated. The two beams interfere constructively and therefore lead to a maximum detector response when they are in phase with each other. The beams interfere destructively when they are out of phase with each other. (14)(15) Figure 1.3 – Schematic representation of the operation of a FTIR spectrometer equipped with a Michelson interferometer
Finding the Focal Length of a Given Convex Lens Aim: - To find the focal length of a given convex lens. Apparatus: - Convex lens Metre rule Screen Candle Matches Wooden blocks Theory:- In this experiment the focal length of a lens is found out. The focal lens
Astronomical Telescopes+ Instrumentation. International Society for Optics and Photonics, 2014. Casagrande, L., et al. "Strömgren Survey for Asteroseismology and Galactic Archaeology: Let the SAGA Begin." Astrophysical Journal 787.2 (2014): 110. Costes, Vincent, Guillaume Cassar, and Laurent Escarrat. "Optical design of a compact telescope for the next generation earth observation system." International Conference on Space Optics. 2012. Cropper, Mark, et al. "VIS: the visible imager for Euclid." SPIE
LAW OF REFLECTION When a light ray strikes a plane mirror it changes its direction which is known as “reflection”. The light ray, which strikes the mirror, is known as “incident ray” and the ray after reflection is known as “reflected ray”. The perpendicular line which bisects the incident ray and reflected ray is called normal drawn to the point of intersection. The incident ray, reflected and the normal drawn to the point of intersection lie on the same plane. (Fig 1) When the light reflects
The Physics of Photography The general population has become so accustomed to their simple point and shoot cameras that they do not either notice the poor quality of images that they are producing or do not have the knowledge to produce better images. For those who desire to take better photographs, photography will be an exciting life long adventure. There are many aspects to consider when taking a photograph. A good photograph is well thought out before the photographer snaps the shutter. Whether
Missing figures PROPERTIES OF LENSES, OPTICAL GLASS Composition Glass is a solid, structureless and amorphous. There are two main group classification of optical glass: 1. Crown, and 2. Flint (has a high content of lead oxide) Chemicals are combined to produce new glass types. These new glass types are used to benefit other different types of cameras (such as high-speed minature cameras, black/white cameras, etc). Properties The most important optical characteristics of a glass
Atmospheric Optics Light is all around us, from both natural and artificial sources, during the day and the night. We think we understand it, and that what we see by it is an exact representation of what we are looking at. However we can be mistaken; the setting sun seen on the horizon has in fact already dropped below the horizon. Twinkling stars are also an effect of this same process, called refraction. Light passing through a medium such as air or water can be absorbed and scattered by the
2.5 Capturing panorama by spatial camera equipment 2.5.1 Catadioptric Panoramas A catadioptric camera system enables us to record a full “half sphere image’’ in one shot. The word catadioptric means pertaining to or involving both the reflection and the refraction of light. A catadioptric camera system is engineered as a combination of a quadric mirror and a conventional sensor-matrix camera; see Figure 2 2. Catadioptric camera systems provide real-time and highly portable imaging capabilities
While studying for the second test, in order to gain a better understanding of transmission, absorption, and reflection, we came across a simulation that involved gummy bears that displayed these concepts using refraction. This sparked our curiosity around Jello and proved to be a valuable learning tool for our group. We therefore thought that this experiment would be a great opportunity to further aid in our learning and supplement experiments on refraction and lenses that we conducted in class
What Are Microscope ? A microscope is an optical instrument that allows you to see objects which are not visible to the naked human eye. The most common type of microscope is called the optical microscope, which uses lens to for images from visible light. Another type of microscope is called electron microscope and the way they work is that, they form images from beams of electrons. Zacharias Janssen: The first person to invent a the light microscope is named Zacharias Jansen. Zacharias was dutch
Light: the quantum phenomenon that provides luminous energy for our world. Radiant energy is why we can observe a twinkling star in the night sky, perceive colors from a painting, distinguish daytime and nighttime, and witness life itself. However, the concept of light is difficult to digest. Many questions about it are yet to be pondered, and most existing ones require technology beyond your and my reach to answer. But we can prove something without much modern tools: manipulation of light. Manipulation
Missing figures/tables It is a daily ritual...wake up, eat, shower, contacts, class. I do this every morning, however I have never stopped to think, "Why?" No, not "Why am I going to class so early?" but "Why do I need these contacts?" With this project I will attempt to explain the basics of vision and corrective lenses, as I, myself, finally learn the reason for sticking my finger in my eye every morning. Basic Eye Anatomy The cornea is responsible for protecting the eye and for refracting
The Speed of Light Through Perspex Planning Light travels at different speeds through different mediums. The speed of light in air is 300,000,000m/s. When light enters an optically denser medium, it bends towards the normal (refracts). You can work out the refractive index of by dividing the sine of the incidence angle by the sine of the angle of refraction and then working out the ratio of the two. Sine i Sine r From this refractive index you can work out the speed of light through