IB Physics Glossary
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B |
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Bacquerel , Bq, is the SI unit of activity for radioactive sources. It is equivalent to a count or disintegration per second. The activity is measured, typically, with a Geiger-Muller (GM) tube. | |
Beta decayor Where X is the parent nucleus, Y is the daughter nucleus, A is the number of nucleons and Z is the number of protons. An example decay is Properties of beta particles include
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Binary to decimal conversion | |
Binding energy is the energy required to assemble a nucleus or to separate the nucleus into its individual components/nucleons. (d) The binding energy per nucleon is the total binding energy for a particular nucleus divided by the number of nucleons contained in the nucleus. For energy to be released in a nuclear reaction, fusion or fission, the binding energy must increase. ![]() Image taken from http://www.smsec.com/en/nucl/07_1.htm | |
Blind spot is a region where the optical nerve leaves the retina which does not contain rods or cones. | |
Brewster's law | |
C |
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Capacitance | |
CCDis a charged coupled device such that the amount of charge that builds up on one of its pixels is proportional to the light intensity falling on the pixel.
The photoelectric effect is responsible for conversion of photons energy to electron energy. | |
CCD resolutionis possible if the size of an image covers at least two pixels. | |