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Compute for 3H the mean energy per nuclear disintegration, Δ. The SI unit for Δ is kg Gy Bq-1 s-1 identical with J Bq-1 S-1. The effective half-life for tritium in body water is 10.5 days. Assume the injection of 50 MBq of tritium labeled water. What is the average absorbed dose in water after the elapse of three half-lives? Assume equilibrium conditions of energy deposition.
Carbon dioxide, dry powder and vapourising liquid extinguishers : Fires produced by spilled liquids should be extinguished by directing the jet or discharge horn towards the near
Define Creatine in Urine Normal urine contains little or no creatine. Some may be found during menstruation, pregnancy and childhood. Urine creatine is considerably increased i
how to make assignment of dry cell?
Shut -down Sequences : In some respects, the time when the lab is being shut down is potentially one of the most dangerous periods of the day. For example, at the end of a day's w
Definition of a rock and the difference between a rock and a mineral ? A rock is a mixture of one or more minerals. There are many kinds of rocks, and we will learn about them
Method of science: We have seen above that science is an enaeavour to understand nature and to mould it to satisfy human needs. In earlier units we have seen that, in this pr
Let us recall briefly what all we have learnt about fire hazards in this unit. Fire accident can happen due .to a number of reasons, like, flammable liquids, faulty electrical and
Define the Sources of sound and their level of loudness Let us now have a look at Table, where the various sources of sound, their level of loudness and its comparison to the f
REGULATIONS CONCERNING SAFETY AND HEALTH OF WORKERS IN INDUSTRIAL LABORATORIES The workers in industry engaged in using or producing chemicals, coal, high temperature, intense
Explain Total Lung Volume or Total Lung Capacity Total Lung Volume (TLV) or Total Lung Capacity (TLC): It is the volume of air remaining in the lungs after a maximal inspirati
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