Found 23 Articles for Light

Introduction From the year, 1666 to 1672, Newton conducted several experiments with the prism and sunlight to recognise the true colour of sunlight. However, he was quite successful in determining the colour of the sun to be white which is seen as a combination of the seven respective colours we experience in a rainbow. With the help of a prism, the experiment has been conducted and through the prism the sunlight is passed which is then dispersed into seven colours. What is Sunlight? Sunlight is the ray of light that is produced by the sun following the reaction of nuclear ... Read More

Introduction The human eye has been made of different intricate parts that work together to make a person, able for seeing or having vision. The visual activity of an eye is generally defined by the clarity of the image that has been seen by the human eye. Focussing on such concepts, this present tutorial will define the structure and the functioning of an eye including the activity of the lens of a human eye. Structure of Eye Sclera − The outer white layer of the eye that can be easily visible as it is situated at the outer ... Read More

Introduction In our day-to-day lives, we experience several phenomena of lights and make use of such phenomena to conduct various works. The phenomenon of reflection basically occurs, in mirrors' ' whereas, refraction normally is seen to occur in lenses. However, it is to be noted that, although both reflection and refraction are the properties of light, they tend to signify the unique differences between them. Reflection seems to happen on the shiny surfaces, while the refraction occurs on the transparent surfaces. What is reflection? As a ray of light interacts with a plane of a surface of another medium, ... Read More

Introduction In accordance with the laws of physics, for the production of an image, the rays of light, need to come from an object and meet at a particular point after being reflected and refracted. At the point where the rays meet, the image is formed. In the simple dictionary, anything that emits light rays can be considered an image. Based on this concept the present tutorial will include the differences between real and virtual images. Definition of the Real image Figure 1: Real image produced by a concave mirror In order to obtain a real image on ... Read More

Introduction The eye is one of the 5 sensory organs apart from the nose, ear, tongue and skin. It enables the power to see every object that is around us. In simple words, it works like a camera that captures visions. Eyes also catch the light rays from our surroundings and make them convert in a way that makes the further process in the brain and make humans see any object near or far. What is a human eye? The human eye is an organ that can transform electromagnetic waves into images in a long and complex process. ... Read More

Introduction The light transmission of any object completely depends on the basic material of the objects. If the object allows a hundred per cent light transmission it is called transparent, and if the light transmission capacity of the object is less than a hundred per cent then it is a translucent object. On the other hand, if the object is made of one kind of material that can block the light transmission completely, it is called an opaque object. The properties of the object Every object that can be seen in any corner of the world is made of some ... Read More

Introduction Light has the characteristics to be reflected, transmitted or absorbed when it falls on a surface with a certain angle of incidence. Light appears as the only electromagnetic radiation that is capable of reflection, transmission and absorption while being visible to the human eye. The process of absorption, transmission and reflection are influenced by the neutral frequencies that can trigger these phenomena in real-time. Absorption of light Definition of absorption of light The process of absorption of light takes place when light is converted into energy after it falls on a surface. When the electrons absorb energy ... Read More

Introduction A shadow is known to be originally a region of space, where there is no visibility of light because the non-transparent object is obstructing the rays of light. The intensity and position of the light source impact the features of the shadow type that is created. Shadow formation happens to be seen due to the propagation of light in a straight line. In the formation of a shadow, a screen, or a non-transparent object, a light source is required. Shadow formation is not possible in a dark place as no material or particular object is visible in ... Read More

Introduction The phenomenon of pressing waves around obstacles is commonly known by the term diffraction, based on this simple concept of physics, the present tutorial will explain the definition of a single-slit diffraction while explaining the pattern of diffraction. Furthermore, the tutorial will include an explanation of the formula of single-slit diffraction along with defining the central maximum as well. The calculation of single-slit diffraction will be included in the tutorial. What is single slit diffraction? Figure 1: Single-slit diffraction pattern The bending phenomenon of light is generally observed in the experiment of Single-slit diffraction. The experiment proves ... Read More

Introduction: Coherent Sources of Light Light sources which produce light waves with the same frequency, constant or zero phases difference, and same wavelength are called coherent sources of light. Two coherent light waves make a sustained interference pattern. Both coherent waves make fixed maxima and minima overtime when they overlap with each other. Images Coming soon Here you can see this visual to understand coherent sources. You can read interference and parameters of light to understand this concept elaborately. Examples of Coherent Sources of Light Read the following example to understand coherent sources of light: The ... Read More