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a. A certain radioactive material emits gamma rays with energy 1 MeV. Another sample of radioactive material emits gamma rays with energy 10 keV. If both of these emit the same amount of energy per unit time, compare their activities.
b. A source of 198Au with a half-life of 2.69 days has an initial activity of 5 Ci. Calculate the activity after 4.0 days. Express this activity in Bq.
In this type of capacitors the dielectric consists of an extremely thin film of aluminium oxide formed on one of its aluminium foil plates. Intimate contact with the other plates i
What is a fiber optic sensor? Fiber optic sensor: A fiber optic sensor is a sensor which uses optical fiber either like the sensing tool ("intrinsic sensors"), or implies as
Explain the Maxwell's equation in electromagnetism connecting magnetic field vector and electric displacement vector.
Thevenin's Theorem can be stated as follows: Any two terminal network having a number of e.m.f. sources and resistances can be changed by equivalent simple series circuit of singl
Q. Name the types of photoelectric cells? The photo electric cells are of three kinds: A) Photo emissive cell B) Photo voltaic cell and C) Photo conductive cell.
Does a piece of glass reflect more light than a piece of paper?
Q. A truck loaded with sand accelerates along a highway. If the driving force stays the same on the truck, what happens to the truck's acceleration if its trailer leaks sand at a
A) Wirte two materials that are magnetic and two that are non-magnetic? B) Explain magnetic induction C) Describe what is meant by "Magnetomotive" force?
An oil film (n = 1.45) on the surface of a puddle of water on the street is 118 nm thick. What frequency of light would be reflected? 2d= (m+1/2)λ/n oil
What are the uses of Endoscopy? Endoscopy can include: 1. The gastrointestinal tract (i.e., GI tract): a. oesophagus, stomach and duodenum (esophagogastroduodenoscopy)
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