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Détermination de la taille d'un objet agrandie

  • Notes d'étude
  • Révisions du sujet
    Charles M.
    GB
    Charles M.

    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.
    NP
    Suchitra S.

    how do you know the size of the image?

    Sara E.
    GB
    Sara E.

    micrometer is usually um isn't it?

    Nelson C.
    GB
    Nelson C.

    There are 1000 microns in 1 millimetre if that's handy

    Jeremy W.
    US
    Jeremy W.

    There is an error in the text. A millimeter is one thousandth of a meter.

    Jeremy W.
    US
    Jeremy W.

    Not one millionth.

    Jeremy W.
    US
    Jeremy W.

    Yes Sarah, µm is the correct abbreviated symbol for micrometer or micron.

    Grace J.
    GB
    Grace J.

    how do you know the size of the image through the microscope?

    Grace J.
    GB
    Grace J.

    scale

    Camile V.
    US
    Camile V.

    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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