The velocity of Light and Refractive Index The refractive index (n) of a medium is defined as the ratio of the velocity of light in a vacuum (c) to the velocity of light in the medium (v): n = c / v where, v = velocity of light in the medium, c = speed of …
The saturated vapor pressure of a liquid is the pressure exerted by its vapor when the liquid and vapor are in equilibrium at a given temperature. At this point, the rate of evaporation of the liquid equals the rate of condensation of the vapor, so there is no net change in the amount of liquid …
Sonar, short for Sound Navigation and Ranging, is a technology that utilizes sound waves to navigate, locate objects, and gather information about the underwater environment. Widely used in marine and underwater applications, sonar plays a crucial role in various fields, including navigation, defense, fisheries, and scientific research. This article delves into the workings of sonar …
Ques: What is the relationship between the Celsius and the Kelvin scales of temperature? Sol.: The Celsius (°C) and Kelvin (K) scales are both temperature scales commonly used in scientific and everyday applications. The Celsius scale is based on the properties of water, while the Kelvin scale is an absolute temperature scale. The relationship between …
What is the relationship between the Celsius and the Kelvin scales of temperature? Read More »
In our modern world, energy is the driving force behind technological advancements and economic growth. The demand for energy is continuously increasing, necessitating a diverse array of energy sources. From traditional fossil fuels to cutting-edge renewable technologies, let us explore the various sources of energy and shed light on their advantages, disadvantages, and sustainability- Fossil …
Sources of energy are divided into 2 types: Renewable Energy Sources Non-Renewable Energy Sources Renewable Energy Renewable energy sources are derived from natural processes that are continuously replenished, making them sustainable and environmentally friendly. They offer a viable alternative to traditional fossil fuels and contribute to mitigating climate change. Here are some examples of renewable …
The Celsius scale, also known as the centigrade scale, is a temperature scale commonly used in many parts of the world. It is named after the Swedish astronomer Anders Celsius, who first proposed the scale in 1742. The Celsius scale is based on dividing the temperature range between the freezing and boiling points of water …
What are Secondary cells? Secondary cells, or rechargeable cells or rechargeable batteries, are energy storage devices that can be repeatedly charged and discharged. Unlike primary cells (non-rechargeable batteries), secondary cells can be reused multiple times, making them more cost-effective and environmentally friendly. Secondary cells function through reversible electrochemical reactions that occur when the cell is …
The center of mass (also known as the center of gravity) is a concept used in physics to describe the average position of the mass distribution of an object or system of objects. It is the point at which the total mass of the object or system can be considered to be concentrated. In a …
The speed of sound is the distance that a sound wave travels in a given amount of time. The speed of sound depends on the properties of the medium through which it is traveling, such as its density and stiffness. In air at sea level and at a temperature of 20 degrees Celsius (68 degrees …
