Drawing scale exceeds labeled magnification

Steps:

• Microscope at ×40 enlarges the specimen 40 times actual size in the eyepiece view.
• Student drew a plan 2 cm in diameter to represent this ×40 image.
• Labeling the drawing "×40" claims its scale matches the microscope's magnification (drawing size = actual size × 40).
• If the drawing exceeds the true ×40 image size, the effective scale is >×40, making the label inaccurate.

Why C is correct:

• Magnification on biological drawings defines scale as (drawing dimension / actual dimension); if drawing > ×40 equivalent, label understates the scale.

Why the others are wrong:

• A: Eyepiece graticule measures actual size for scale calculation but isn't required to identify label error here.
• B: Low power (×40) enlarges, not shrinks, the viewed stem size.
• D: Drawing was larger, not smaller, than ×40 scale.

Final answer: C