Reflection and refraction Lab Report Example | Topics and Well Written Essays - 500 words

Reflection and refraction - Lab Report Example The diagrams demonstrate the concept of reflection and refraction. In the diagram above, a light ray strikes the mirror at a specific point, and the reflected ray is projected. The law of reflection state that the angle of incidence (i) and the angle of reflection (r ) are equal. The experiment demonstrated specular reflection because it involved the use of smooth surfaces to demonstrated the behavior of light waves. The experiment aided in confirming the three laws of reflection (Strong 8), which include: The refraction experiment involved the observation of how light waves behave as they travel through air and water. Generally, the incident ray is partially reflected and refracted. Theoretically, the concept of refraction is explained Snell’s law, which states that the ratio of the sines of the angle of reflection and the angle of reflection are equivalent to the ratio produced by the phase velocities in the two media in which the wave travels (Dekker 168). The change in the direction as light travels from one medium to the next was observed when the straight pencil observed in water appeared bent at the water surface. The pencil was placed in a slanted position because refraction cannot occur if the angle of incidence is zero degrees. The pencil appeared slant as shown in Fig 2 because the light rays bend as they pass from air into water. The speed and wavelength of the light rays changed while the frequency was constant. When the bent rays reach the eye, they are interpreted as straight lines of sight. The straight lines of sight interpreted by the eye intersect at a position that is higher than the actual origin the rays. Thus, the water appears shallow and pencil much higher than its original depth. The behavior of light in different media is explained by the refractive index. Reflection and refraction concepts have been applied in the field of thin film

Summary Essay Example | Topics and Well Written Essays - 5000 words

Summary - Essay Example The major question is: What is tourism education? The other important concept to consider is to establish the difference between tourism education and tourism training. The other important question that sought to be addressed by the study is: How has tourism education developed in Indonesia? More importantly, the chapter sought to explore the concepts and methods used in delivering tourism education in the learning as well as teaching process. The chapter also sought to explore the level of tourism in the Indonesian Higher education. Tourism education has rapidly developed during the past two decades in different parts of the world. For instance, the first degrees in travel and tourism were offered in the 1980s in the UK (Messenger, 1991). This trend has slowly spread to other countries both developing and developed. Research has shown that this trend is a bit similar in developing as well as developed countries. However, there has been debate about whether to consider tourism as a discipline on its own. This is mainly because it is widely viewed as an emerging discipline which has not yet fully developed. The group that argues that tourism is a discipline on its own state that there have been different distinctive concepts peculiar to the tourism industry that have developed during the recent past (Leiper, 2000). For instance, the main destination ratio is a concept specifically meant for the tourism industry (Leiper, 1981). The Australian Standard Research Classification asserts to the notion that tourism has been long identified as However, the other group argue that tourism cannot be regarded as a discipline on its own as a result of the fact that it lacks integrated frameworks that have been developed in various disciplines in different researches. In actual fact, they argue that there are few or no theories that have been specifically developed for this area of study which means that it cannot be regarded as a