Found 575 Articles for Physics

Introduction Raman scattering is an ideal technique that creates dispersed photons with distinct frequencies based on the rotational and vibration properties of the scattered molecules. Raman scattering is utilised to acknowledge the materials by physicists and chemists. In recent times, lasers are utilised to record the spectra whereas photographic plates and mercury lamps were utilised in calculating the spectra. In the year 1928, Raman Scattering was uncovered by C.V Raman along with his famous student KS Krishnan. C.V Raman was awarded for his innovative discovery in the year 1930. It is demonstrated that one photon is scattered as Raman scattering ... Read More

Introduction Albert Einstein discovered the particle nature of light based on the fact, that metals eject electrons when it comes in contact with light. Electromagnetic effects are integrally associated with this nature of light. According to Albert Einstein, electromagnetic energy is associated with significant packets of quanta, which are also known as photons. As per the former and traditional observations, the ejected electrons are highly influenced by the wavelength of light. The released electrons are directly impacted by the intensity of light. Most scientists previously regarded this as the wave. The experiment of electron ejection is connected to the photoelectric ... Read More

Introduction The study of ''solid-state physics'' has been emerged in the year 1940, when scientists study the atomic properties of solid material. Here every ''solid material'' is composed of densely ''packed atoms'' and based on the relation between the atoms of the solid materials their properties are being decided (physics, 2022). During the atoms' interaction, the properties like electrical, magnetic, thermal, optical, and mechanical properties of the solid materials are decided. In the scientific field, the alignment of ''atoms of solid particles'' is basically in a geometric, irregular, or regular pattern. The alignment of solid particles' atoms mainly relies on ... Read More

Introduction Space wave propagation generally takes place when particular radio waves propagate through space from the transmitting antenna around the earth to reach a receive antenna. These kinds of waves are known as tropospheric propagation because from the earth’s surface to the tropospheric propagation they generally tended to travel. It is generally called the straight propagation line. This is due to the fact that the signals are sent in a straight line from receiver to the transmitter. Space Wave propagation and its components Space wave propagation occurs within the troposphere layer of the earth’s atmosphere that is within 20km ... Read More

Introduction The aspects of amplitude and frequency are associated with the waveforms. Amplitude is depicted when a wave shows a greater deviation from zero. On the other hand, the total number of waves or oscillations passing through a particular point in a second is termed frequency. Amplitude, as well as frequency, is inversely proportional to each other. That is with the decrease in frequency, the amplitude of the wave increases and vice versa. Amplitude and frequency: Definition Amplitude in the case of sound waves measures the wave height. As opined by He et al. (2021), amplitude of sound wave is ... Read More

Introduction Each Fahrenheit and Celsius scale possesses significant and different temperatures in which the water freezes and boils as well. On a centigrade scale, the temperature is expressed by pointing to degrees Celsius. On another scale, the Fahrenheit scale, the temperature is mainly expressed by pointing to degrees Fahrenheit. History and importance of both scales Between Fahrenheit and Celsius scales, Daniel Gabriel Fahrenheit, a physicist, firstly invented Fahrenheit scale in 1724. This physicist's main concentration was to measure the average inner temperature of a human's body and also to measure the temperature of Brine in which it freezes (Paoletti, 2020). ... Read More

Introduction The refrigerant is usually put through a compressor that gradually raises the gas pressure and enhances the temperature. Then through the ''condense coils'' the hot gas flows to heat up the inside area which is of higher temperature. If the freezer or refrigerator's temperature is kept at zero degrees Fahrenheit then the food will remain at a safe temperature so that it can be stored and consumed later after 3 or more days. Figure 1: Refrigerators and Heat Pumps The heat is then transferred to the room and then again condenses back into ''liquified'' form. Heat pump is ... Read More

Introduction The index of refraction or the refractive index of an optical medium is determined as the number that does not have any dimension. This dimensionless number gives an indication of the ability of light bending of that particular medium (optical medium). The phenomena of the refractive index determine how much the light path has bent or got refracted while entering into the optical medium (Luk’yanchuk et al. 2017). The Refractive Index is mainly considered to be the ratio between the light speed in an empty place or vacuum and the speed of light in a specific space. The refractive ... Read More

Introduction In order to understand the study of waves and signals, a periodic table is used. In physics, it is observed that the motion is responsible for returning to the same value at a particular interval of time. Based on these specific concepts, all kinds of periodic motions are referred to as periodic functions. Focussing on such concepts this tutorial includes the information related to the periodic function along with its properties of it and the formula is included as well. What is Periodic Function? Over the course, based on a fixed interval of time, the motion that occurs ... Read More

Introduction P Wave determines the small positive deflection that can be seen in the isoelectric baseline occurring before the complex of QRS. Sometimes abnormalities can be found in P Wave and PR segment morphology where clinical pathology timing can be significantly indicative. With an accurate understanding of the morphology of abnormal and normal P waves, one can also understand the crucial part of the interception of ECG or electrocardiogram. In a healthy human, this P wave originates at SA which means a sinoatrial node and then disperses into both the right and left atria. The left atrium depolarization is ... Read More