What is the frequency of highly energetic ultraviolet radiation
Answer (1)
Highly energetic ultraviolet (UV) radiation has a frequency range of 7.5 × 10¹⁴ Hz to 3 × 10¹⁶ Hz. This corresponds to wavelengths between 1 × 10⁻⁸ m (10 nm) and 4 × 10⁻⁷ m (400 nm) Key Details:1. UV spectrum• UV radiation is divided into three sub-bands:UVA (400–315 nm): Lower energy, less harmful.UVB (315–280 nm): Mid-energy, causes sunburn.UVC (280–10 nm): Highest energy, absorbed by the ozone layer• The UVC band is considered "highly energetic" due to its short wavelengths and high frequencies2. Frequency calculation• The formula for frequency is: [tex]\nu = \frac{c}{\lambda}[/tex]For a wavelength of 125 nm: [tex]\nu = \frac{3 × 10⁸ m/s}{125 × 10⁻⁹ m} ≈ 2.4 × 10¹⁵ Hz[/tex]This falls within the UVC range3. Energy relationship• UV radiation’s energy increases with frequency and decreases with wavelength. For example:UVC radiation (10–280 nm) has energy up to 2 × 10⁻¹⁷ J, while UVA (400 nm) has energy around 5 × 10⁻¹⁹ J
