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A PET scan which is known as Positron Emission Topography involves passing a positron emitting source through a patient. The source used for a PET scan is FDG which contains Fluorine-18. A positron emitte...
The photoelectric effect occurs when individual photons are incident on a clean metal surface. The photons are absorbed by electrons in the clean metal surface and they are released as photoelectrons. The...
A star begins its life from Hydrogen gas. Gas particles of Hydrogen gas are brought together due to the gravitational force of attraction between them. There is an increase in Kinetic Energy of these gas ...
Pathetic fallacy is a literary device that is used to create mood and atmosphere. It is the use of the weather or other atmospheric devices to reflect the mood and tone of the characters and their situati...
When an unseen poem is presented to you in an exam, one of two things will happen. Either, a message or meaning of the poem will appear to jump out of the page at you, or, you will think – help! I have no...
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