What is the intensity of UV light?

What is the intensity of UV light? The intensity of UV radiation is measured in the units of milliwatts per square centimeter (mW/cm2) which is energy per square centimeter received per second. Also, it is measured in the units of millijoules per square centimeter (mJ/cm2), which is energy received per unit area in a given […]

What are pollutants give example?

What are pollutants give example? These are those which are emitted directly from the source and persist in the form in which they were added to the environment. Typical examples of pollutants included under this category are ash, smoke, fumes, dust, nitric oxide, sulphur dioxide, hydrocarbons etc. What are the major sources of pollutants? The […]

What is tan90 value?

What is tan90 value? The value of tan 30 is 1/√3. What is the value of Cosec 0? The value of cosec at 0° is the reciprocal of sin at 0°. How do you find the value of Cosec? Find the value of cosec(−1410∘) Therefore write 1410∘ as (4×2π−30∘) and proceed. Complete step-by-step answer: We […]

What is the strongest alloy?

What is the strongest alloy? Steel What are some examples of alloys? An alloy is a mixture or metallic-solid solution composed of two or more elements. Examples of alloys include materials such as brass, pewter, phosphor bronze, amalgam, and steel. What alloys do we use everyday? List of Alloys and Their Composition and Uses Name […]

What is a good example of instantaneous speed?

What is a good example of instantaneous speed? At a given instant time what we read from the speedometer is instantaneous speed. For example, a car moving with a constant speed travels to another city, it must stop at red lights in the traffic, or it should slow down when unwanted situations occur in the […]

How a ring main is wired?

How a ring main is wired? The mains supply The power sockets in a house are connected by means of a ring circuit. In a ring circuit the live, neutral and earth wires form a loop of cable going from the consumer unit to all of the sockets in turn and then back to the […]

How is DNA used to identify individuals?

How is DNA used to identify individuals? DNA fingerprinting is a chemical test that shows the genetic makeup of a person or other living things. It’s used as evidence in courts, to identify bodies, track down blood relatives, and to look for cures for disease. What are the steps of gel electrophoresis? There are several […]

What is U value of insulation?

What is U value of insulation? A U-value is a sum of the thermal resistances of the layers that make up an entire building element – for example, a roof, wall or floor. It also includes adjustments for any fixings or air gaps. Is it better to have a higher or lower thermal conductivity? A […]

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