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a. How many ion pairs are produced in 1 cm3 of air during an exposure of 100 mR? The density of air at STP is ρ = 1:293kg m-3. What is the absorded dose to air?
b. An thin walled carbon-wall ionization chamber, whose volume is 2 cm3, is filled with standard air at 0°C and 760 mmHg and is placed inside a tank of water to make a depth-dose measurement. A 25 MeV electron beam produces a current of 0.02 μA in the chamber. If the mass stopping power of water at the depth of measurement for 25 MeV electrons relative to air is 1.068, what is the dose?
Define Colorimetric Method for the Estimation of Phosphorous Estimation of phosphorous is based upon the principle of colorimetry. Many methods for quantitative analysis are ba
Explain Examination of Urine Examination of urine is done to detect the presence of any abnormal constituent(s) and hence can be used as an important screening test for identif
The rain cycle You can reproduce the rain cycle in miniature in your classroom. Place a box of plant seedlings on the table. Place a metal tray about 35 to 40 cm above the box
Define Hypoparathyroidism Hypoparathyroidism or a decrease in the secretion of parathormone causes an upset in calcium metabolism. Hypocalcemia develops and the muscles go into
The simply-supported uniform beam shown in the ?gure below supports a mass m at a distance aL from the left support. Assume that the beam is relatively mass-less compared to the ma
Question: The Law of the Sea Convention came into force in 1994. Art.56(1)provides the coastal state with sovereign rights for the purpose of exploring and exploiting, conservi
The Early History of the Earth The Earth has been evolving and changing ever since its origin, about 4.5 billion years ago. In the first tens of millions of years of the Ea
Waht is the body temp of pisces
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my research topic is based on water consumption efficiency. I need definitions of the following keywords; efficiency consumption, water use behavior / pattern; water end uses, wat
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