Resolving power = 0.5x wavelength/ numerical aperture (n sin theta)
n sin theta in most microscope have value = 1.2 and 1.4
therefore:
R. P. = 0.5x500nm/ 1.25 = 200nm = 0.2 microns.
(conv. 1000nm = 1micron).
frsg
Viruses. They are smaller than the average wavelength of light and as such are not viewable unless an electron microscope is used.
because lens tissue is softer than average tissue paper and wont scratch the glass.
Bacterium size is measured by a technique called Micrometry. With micrometry you can measured the size of very small beings like bacteria, cells, etc. This technique involves the use of a microscope in which the eye piece is calibrated in micrometers. A similarly calibrated slide is used for standardization. The specimen is then mounted and the size measured. Normally, the size of many cells are taken into account and an average value is taken, since all cells may not be of the same size.
The average length of an onion cell ranges from 0.25 mm or 250 microns to 0.4 mm or 400 microns. No one has actually measured the width of an onion cell but from the diameter of the field of view in a microscope and comparing the length to the width, I would say that the width is about a quarter or third of the length. Therefore, the width would have to be somewhere between 0.06 to 0.08 mm.
A statistic is a value calculated from a data sample. For example, the mean (average) is a statistic. You calculate the mean by adding up the values of the data you have and dividing by the number of values. Usually, you want to know the corresponding value for the whole population but this is impossible to obtain in practice. So you have to use a statistic calculated from a sample. For eaxmple, if you want to know the height of sixteen year old students in the UK, you cannot measure every single student. So you measure a sample (selected randomly), and calculate the average height of the sample. This is a statistic. See: http://www.stats.gla.ac.uk/steps/glossary/basic_definitions.html#stat
Viruses. They are smaller than the average wavelength of light and as such are not viewable unless an electron microscope is used.
Viruses. They are smaller than the average wavelength of light and as such are not viewable unless an electron microscope is used.
a few centimeters
how we calculate the average of activa
how to calculate average selling price
The term is 'alternating voltage', not 'alternate voltage'. For an a.c. voltage or current, the average value is taken over half its wavelength because, over a complete wavelength it is, of course, zero. For a sine wave, the average value (over half a wavelength) is 0.637 Vmax or 0.637 Imax.
Average Resolution Time
hoe do u calculate average daily collection?
That's called the wavelength.
Calculate the average balance and finance charge
You calculate the normal average between the two central numbers.You calculate the normal average between the two central numbers.You calculate the normal average between the two central numbers.You calculate the normal average between the two central numbers.
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