Understanding the Relationship
* Speed of light (c): A constant value, approximately 3 x 10⁸ meters per second (m/s).
* Wavelength (λ): The distance between two successive crests or troughs of a wave (measured in meters).
* Frequency (f): The number of waves passing a point in one second (measured in Hertz, Hz).
The relationship between these is:
c = λf
Calculations
1. Convert wavelength to meters:
750 nm = 750 x 10⁻⁹ m
2. Rearrange the equation to solve for frequency:
f = c / λ
3. Plug in the values:
f = (3 x 10⁸ m/s) / (750 x 10⁻⁹ m)
4. Calculate the frequency:
f = 4 x 10¹⁴ Hz
Answer: The frequency of red light with a wavelength of 750 nm is approximately 4 x 10¹⁴ Hz.
