PHYSICS ASSIGNMENT

Physics Assignment



Physics Assignment

Answer # 1: Photon of Electromagnetic Radiation

Light is made up of Electromagnetic Waves (EM). It is the mixture of magnetic and electric field oscillating together. Both the fields are perpendicular and waves travel perpendicularly to both fields. Photons are the particle that has created these waves as they are mass less energy travelling as speed of light. Electromagnetic radiation performs as both wave and particle same time. Electromagnetic Waves consist of three properties: wavelength (?)- distance among two nearby waves, frequency (f)- the rotation of waves number per second, or energy (E)- of every photon existing in the waves. The relationship among frequency, wavelength, and energy in EM radiation is following as:

Answer # 3: X-Rays

The rays when penetrate with each other and when the energy strikes the metal X-ray was produced. After their discovery they were mostly used for medical terms to identify the broken bones. When electrons decelerated then these electromagnetic rays of high frequency are produced. These high frequency rays are known as braking radiation or bremsstrahlung radiation.

The main work of X-rays is to identify the damages as well as diseases in the soft tissues. It provides the revelation of the skeletal system. According to Roobottom (2010), the examples which can highlight the significance of X-ray are Chest X-ray that is use to identify the pulmonary edema and lung cancer. The abdominal X-ray is use to identify the hindrance in the intestine. It is also use to find out the pathogens such as gallstones or kidney stones (Frame, 2008).

Answer # 4: CT Scan

The CT scanner emits collimated beam of X-rays incident on the object being studied. The radiation not absorbed by the object is collected by the detectors. Then the beam emitter, having a specific orientation (e.g., strictly vertical to 90 °) changes its orientation (e.g., beam oblique to 95°). This spectrum is also collected by the detectors. The computer 'sum' images, averaging them. Again, the issuer changes its orientation (in the example, about 100 ° tilt). Detectors collect this new spectrum, the 'add' to the above and 'average' data. This is repeated until the ray tube and detectors have a complete revolution, at which time it has a final tomographic image and reliable (Karthikeyan 2006, pp. 1).

The fractures of Nasal are among ordinary fractures of face, accounting for up to 40% of the cases of facial trauma. The most general causes are sports, fights, and motor vehicle accidents. Bony anatomy of the nose includes the paired, wedge-shaped nasal bones; the nasal processes of the frontal bone; and the maxilla. The imaging study of choice for orbital injuries is a computed tomography (CT) scanning the orbits and face. Orbital plain films are not recommended, as some studies have shown a false-negative rate as high as 50%. Once ocular emergencies have been ruled out by careful examination and a CT scan, treatment of isolated orbital floor fracture may consist of early surgical repair or conservative management (Hatano 2004, ...