How does the energy of visible light relate to its wavelength and frequency?

The energy of visible light is directly related to its frequency and inversely related to its wavelength.

Key Relationships:

1. Frequency (f) and Wavelength (λ):
   • As wavelength decreases, frequency increases (and vice versa).
   • Visible light ranges from about 400 nm (violet) to 700 nm (red).
2. Energy and Frequency:
   • Energy increases with higher frequency.
   • Violet light (shorter wavelength, higher frequency) has more energy than red light.
3. Energy and Wavelength:
   • Energy decreases with longer wavelength.
   • Red light (longer wavelength, lower frequency) has less energy than violet light.

Why This Matters:

• Shorter wavelength = more energetic (e.g., violet light can excite electrons more than red light).
• Determines how light interacts with matter, such as in photosynthesis, vision, or photodetectors.