P is a source that gives out infra-red radiation, and Q is a source that gives out ultra-violet radiation. The numbers in the table are proposed wavelength values for the radiation emitted by P and Q. Which row is correct?
- Awavelength emitted by P $= 5 \times 10^{-5}\,\text{m}$, wavelength emitted by Q $= 5 \times 10^{-8}\,\text{m}$
- Bwavelength emitted by P $= 5 \times 10^{-5}\,\text{m}$, wavelength emitted by Q $= 5 \times 10^{-10}\,\text{m}$
- Cwavelength emitted by P $= 5 \times 10^{-7}\,\text{m}$, wavelength emitted by Q $= 5 \times 10^{-8}\,\text{m}$
- Dwavelength emitted by P $= 5 \times 10^{-7}\,\text{m}$, wavelength emitted by Q $= 5 \times 10^{-10}\,\text{m}$