A wave in the electromagnetic spectrum has a wavelength of $2.1\,\text{cm}$ in a vacuum. In which region of the electromagnetic spectrum does this wave lie?
- Ainfrared
- Bmicrowave
- Cradio wave
- Dvisible light
Physics 9702 · AS & A Level · Electromagnetic spectrum
A wave in the electromagnetic spectrum has a wavelength of $2.1\,\text{cm}$ in a vacuum. In which region of the electromagnetic spectrum does this wave lie?