What is the bouncing of light called? Reflection Does light slow down in water? Yes. Light is slowed down in transparent media such as air, water and glass. The ratio by which it is slowed is called the refractive index of the medium and is usually greater than one. Does light travel slower in water […]
What is the formula of resultant vector?
What is the formula of resultant vector? Suppose two ships are moving in different directions at some angle between them and we have to find the distance between them we use the formulaR2=a2+b2−2abcosθ But if we have to find the resultant between two forces we use the formulaR2=a2+b2+2abcosθ. What is the magnitude of resultant vector? […]
What are the basic principle of environmental conservation?
What are the basic principle of environmental conservation? The policy establishes as basic action principles: Integrating the conservation of biodiversity into the decision-making processes at the implementation, operation and dismantling stages of infrastructure projects. What are the principles of conservation and preservation? Conservation is an ethic of resource use, allocation, and protection. Its primary focus […]
What are the side lengths of a 30-60-90?
What are the side lengths of a 30-60-90? A 30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º. The triangle is special because its side lengths are always in the ratio of 1: √3:2. Any triangle of the form 30-60-90 can be solved without applying long-step methods such as the […]
Can half life be a fraction?
Can half life be a fraction? Half-lives can be short (less than a second) or very long (billions of years). The fraction of remaining sample of an isotope can be calculated with the formula – -, where n is the number of half-lives that have passed. For example, after 1 half-life, % of the sample […]
How do you increase the diameter of a laser beam?
How do you increase the diameter of a laser beam? Laser beam expanders increase the diameter of a collimated input beam to a larger collimated output beam for applications such as laser scanning, interferometry, and remote sensing. Contemporary laser beam expanders are afocal systems developed from well-established optical telescope fundamentals. How small can a laser […]
Will a car still run if you disconnect the battery?
Will a car still run if you disconnect the battery? If the engine’s already running, disconnecting the battery will still keep the engine running. If you’re trying to start a car without a battery or with a very dead battery, it won’t start (even with push start in a manual car) because there’s no electrical […]
Is there a road in the US without speed limit?
What is the meaning of gale warning?
What is the meaning of gale warning? A gale warning is an alert issued by national weather forecasting agencies around the world in an event that maritime locations currently or imminently experiencing winds of gale force on the Beaufort scale. Does Gale mean light? A Gale is a type of Wind Description preceded by Calm, […]
What is electric potential at a point?
What is electric potential at a point? Electric potential, the amount of work needed to move a unit charge from a reference point to a specific point against an electric field. Typically, the reference point is Earth, although any point beyond the influence of the electric field charge can be used. How is potential related […]