Category: Physics

Why do we use displacement? It quantifies both the distance and direction of the net or total motion along a straight line from the initial position to the final position of the point trajectory. A displacement may be identified with the translation that maps the initial position to the final position. What’s the formula for […]

What height of water is supported by atmospheric pressure what height of mercury? 760 mm Why is water not used as barometric liquid? Solution. Water is not a suitable barometric liquid because: (i) The vapour pressure of water is high, so its vapours in the vacuum space will make the reading inaccurate. (ii) Water sticks […]

What are three types of LASERs? Types of lasers – Solid state laser, Gas laser, Liquid laser & Semiconductor laser. What is radiation in laser? Laser radiation is an optical radiation that can either be visible or invisible. If the wavelength of a laser beam is 400-780nm (nanometres), the beam is visible to the human […]

When you prepare for a right turn should you remain as near the center of the lane as possible? As you prepare to turn, reduce speed and stay as far to the right as possible. Begin the turn in the lane nearest to the right-hand curb and end the turn in the lane nearest the […]

How do I calculate power? Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in […]

What are the three domains into which organisms are classified? The three-domain system is a biological classification introduced by Carl Woese et al. in 1990 that divides cellular life forms into archaea, bacteria, and eukaryote domains. What are 3 reasons we classify organisms? Classification allows us to understand diversity better. It helps in the identification […]

Does sulfur break easily? Sulfur is a solid, which means you can hold it and touch it, but it is known as a nonmetal, meaning it is not made up of metal. It is recognizable because of its pale yellow color. If you touch it, it is soft and can easily break with your fingers. […]

Who is the father of classification? Carolus Linnaeus What is the largest kingdom? animal kingdom Who is the father of five kingdom classification? Whittaker What is the 3 domains of life? According to this system, the tree of life consists of three domains: Archaea, Bacteria, and Eukarya. The first two are all prokaryotic microorganisms, or […]

How long does a coffin last? Eventually these too will disintegrate, and after 80 years in that coffin, your bones will crack as the soft collagen inside them deteriorates, leaving nothing but the brittle mineral frame behind. But even that shell won’t last forever. A century in, the last of your bones will have collapsed […]

Why are scientific models limited? The limitations of scientific modeling are emphasized by the fact that models generally are not complete representations. The Bohr atomic model, for example, describes the structure of atoms. Nor was it able to predict the energy levels for atoms with more than one electron. What is a conceptual model example? […]