Category: Physics

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 […]

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 […]

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? […]

Why is my hand eye coordination so bad? Hand-eye coordination problems are usually first noted as a lack of skill in drawing or writing. Poor hand-eye coordination can have a wide variety of causes, but the main two conditions responsible for inadequate hand-eye coordination are vision problems and movement disorders . … What is the […]

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 […]

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 […]

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. […]

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 […]

What astrology sign is the moon in right now? Aries What is Lilith in astrology? In an astrology chart, Black Moon Lilith represents a person’s primitive impulses and behavior in their rawest form. It reveals our repressed sexuality, together with what makes us feel most vulnerable; it expresses the dark side of one’s personality, buried […]

Can firewood be too dry? It’s not something that most people complain about very often, but yes, wood can be too dry and burn faster than would be the case at an optimal 10-15% MC. What is the longest burning firewood? Hardwoods such as maple, oak, ash, birch, and most fruit trees are the best […]