Over the course of millions of years, the human eye has evolved to detect light in the range 380—780nm, a portion of the electromagnetic spectrum known as visible light, which we perceive as colour. Calculate the frequency of red light of wavelength 6.5 \times 10^{-7} m. Homework. engcalc.setupWorksheetButtons(); Wavelength and frequency are therefore inversely related. To determine the redshift, one searches for features in the spectrum such as absorption lines, emission lines, or other variations in light intensity. Enter the Wavelength to Calculate the Frequency. Calculate. You must activate Javascript to use this site. Photons are nothing but light particles. Wavelength and frequency are therefore inversely related.

Red light has a wavelength of ~700 nm, and a frequency of ~4.3*10 14 Hz. Calculate the frequency of red light of wavelength [tex]6.5 \times 10^{-7} m[/tex]. Download the RF Calculator App on . window.jQuery || document.write('