To determine which student is correct regarding the relationship between wavelength and frequency, we can use the fundamental relationship in physics: as the wavelength increases, the frequency decreases, and vice versa.
Let's analyze each student's statement:
- Darius: Wavelength increases and frequency increases. (Incorrect)
- Kathryn: Wavelength increases and frequency remains the same. (Incorrect)
- Anya: Wavelength decreases and frequency increases. (Correct)
- Franco: Wavelength remains the same and frequency decreases. (Incorrect)
Based on these analyses, the correct student is Anya, as she correctly states that a decrease in wavelength corresponds to an increase in frequency.