Question
A cell appears 30 mm long under a microscope at ×500 magnification. Calculate the actual length of the cell in micrometres (μm).
2 marks · take your time before peeking.
Sign up to try the next 30 problems
Save your streak, mark answers against the spec, and build a daily revision habit. Free during public beta — no card, no auto-renew.
Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.