OCR A Level Biology A lesson on Magnification and Calibration. This is one of seven lessons to meet the specification points for 2.1.1 Cell Structure.
Specification points: 2.1.1 (d & e)
Objectives for this lesson:
• State the formula for calculating magnification.
• Describe how to calibrate a microscope using an eyepiece graticule and stage micrometer.
• Calculate magnification using the formula.
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