Paper 1 · microscopy and magnification
The following diagrams show the main steps involved in measuring the width of a leaf at the midrib region using a light microscope. If the smallest division on the stage graticule is 1mm long, what is the width of the leaf in micrometers?
A3 500 μm.
B2 500 μm.
C56 μm.
D3.5 μm.
ZIMSEC Biology 9190/1 Paper 1, November 2003, Q3