Violet light of frequency 750 × 1012 Hz has a wavelength of 400 × 10-9 m in a vacuum.
What is a possible frequency and wavelength for red light in a vacuum?
a frequency of 460×1012 Hz460 \times 10^{12}\text{ Hz}460×1012 Hz and a wavelength of 350×10−9 m350 \times 10^{-9}\text{ m}350×10−9 m
a frequency of 460×1012 Hz460 \times 10^{12}\text{ Hz}460×1012 Hz and a wavelength of 650×10−9 m650 \times 10^{-9}\text{ m}650×10−9 m
a frequency of 850×1012 Hz850 \times 10^{12}\text{ Hz}850×1012 Hz and a wavelength of 350×10−9 m350 \times 10^{-9}\text{ m}350×10−9 m
a frequency of 850×1012 Hz850 \times 10^{12}\text{ Hz}850×1012 Hz and a wavelength of 650×10−9 m650 \times 10^{-9}\text{ m}650×10−9 m
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.