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# Determinando o tamanho de um objeto magnificado

• Nota de Estudos
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 Charles M. 0 0 The size of an object in a magnified picture must be determined mathematically. To do this calculation you need to know: * the size of the object in the picture; * the magnification of the picture. These values are used in the formula: Generally the sizes of cells are quoted in micrometres. A micrometre (mm) is one millionth of a metre. .
 Suchitra S. 0 0 how do you know the size of the image?
 Sara E. 0 0 micrometer is usually um isn't it?
 Nelson C. 0 0 There are 1000 microns in 1 millimetre if that's handy
 Jeremy W. 1 0 There is an error in the text. A millimeter is one thousandth of a meter.
 Jeremy W. 0 0 Not one millionth.
 Jeremy W. 0 0 Yes Sarah, µm is the correct abbreviated symbol for micrometer or micron.
 Grace J. 0 0 how do you know the size of the image through the microscope?
 Grace J. 0 0 scale
 Camile V. 0 0 Its really important to know the size of the object. To make projections on the mass of the object, or how much the object weighs can be derived from this.

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