If the frequency remains constant, the wavelength increases. The wavelength decreases as the frequency decreases. The frequency increases as the wavelength decreases. If the wavelength remains constant, the frequency increases.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which of the following best describes the relationship between frequency and wavelength of electromagnetic waves?
Possibilities:
- If the frequency remains constant, the wavelength increases.
- The wavelength decreases as the frequency decreases.
- The frequency increases as the wavelength decreases.
- If the wavelength remains constant, the frequency increases.

The frequency increases as the wavelength decreases.