Science > Physics > Units and Measurement > Measurement of Length, Area, and Volume > Use of Micrometer Screw Gauge Physics is a science of measurement. In science and engineering, we perform experiments. During experiments, we have to take readings. Thus all these experiments require some measurements to be made. During the production of mechanical […]
Science > Physics > Units and Measurement > Measurement of Length, Area, and Volume Use of Vernier Calipers Physics is a science of measurement. In science and engineering, we perform experiments. During experiments, we have to take readings. Thus all these experiments require some measurements to be made. During the production of mechanical products, we […]
Science > Physics > Units and Measurement > Measurement of Length, Area, and Volume > Use of Metre Scale Physics is a science of measurement. In science and engineering, we perform experiments. During experiments, we have to take readings. Thus all these experiments require some measurements to be made. During the production of mechanical products, […]
Science > Physics > Semiconductors > Introduction Semiconductors are the substances whose conductivity lies between the conductors and insulators e.g. Germanium, Silicon, etc. These elements are members of the fourth group of the periodic table with valency 4. These elements have a partially filled conduction band and partially filled valence band. There are no free […]
Science > Physics > Semiconductors > PN Junction Diodes When a crystal of semiconductor is doped such that half the portion of the crystal is doped with a trivalent impurity and the other half is doped with a pentavalent impurity, then the junction (boundary) formed is called a PN junction. The crystal itself is called […]
Science > Biology > Digestion and absorption in Human > Gastric Glands The gastric glands are numerous, simple or branched tubular glands present in the mucosa of the stomach. They are located in different regions of the stomach. Gastric glands secrete digestive juice and mucus. There are three types of gastric glands, distinguished from one another […]
Science > Biology > Digestion and absorption in Human > Salivary Glands There are two sources of digestive enzymes: The glandular cells of the lining of the stomach and intestine, which directly pour their secretion into the lumen of the gut or the alimentary canal. Special glands such as the salivary glands, the liver and the […]
Science > Physics > Oscillations: Simple Harmonic Motion > The Vibration of Vertical Spring In this article, we shall study the vibration of vertical spring, when a mass is attached to it. Oscillation of Mass Due to a Vertical Spring: Let us consider light and elastic spring of length L suspended vertically from a rigid […]
In this article, we shall study to solve numerical problems based on simple pendulum. Science > Physics > Oscillations: Simple Harmonic Motion > Numerical Problems on a Simple Pendulum Example – 01: The period of oscillation of a simple pendulum is 1.2 sec.in a place where g= 9.8m/s2. How long is the bob below the […]
Science > Physics > Oscillations: Simple Harmonic Motion > Theory of Simple Pendulum In this article, we shall study a concept of a simple pendulum, its characteristics. We shall also derive an expression for the period of a simple pendulum. A simple pendulum consists of a point mass suspended from a perfectly rigid support by […]