Visible light has a wavelength of approximately 6.0 × 10-7 m in a vacuum. P and Q are two other types of electromagnetic radiation. The wavelength of P is 2.0 × 10-5 m. The wavelength of Q is 3.0 × 10-10 m.
Which types of radiation are P and Q?
P: infra-red; Q: radio waves
P: infra-red; Q: X-rays
P: ultraviolet; Q: X-rays
P: ultraviolet; Q: radio waves
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.