What is the approximate range of wavelengths of visible light detectable by a healthy human eye?
4.0 nm4.0\text{ nm}4.0 nm to 7.0 nm7.0\text{ nm}7.0 nm
40 nm40\text{ nm}40 nm to 70 nm70\text{ nm}70 nm
400 nm400\text{ nm}400 nm to 700 nm700\text{ nm}700 nm
4.0 μm4.0\ \mu\text{m}4.0 μm to 7.0 μm7.0\ \mu\text{m}7.0 μm
198 exam-style questions on CIE IGCSE Physics Electromagnetic spectrum, covering Electromagnetic spectrum. Each one has a worked solution and a mark scheme showing where the marks go.