SSC MTS EXAM

Detailed explanation-1: -The frequency of light is inversely proportional to the wavelength of the light and is equal to the reciprocal of time period of the wave. The colour of light is defined on the basis of either its wavelength or its frequency.

Detailed explanation-2: -Frequency determines color, but when it comes to light, wavelength is the easier thing to measure. A good approximate range of wavelengths for the visible spectrum is 400 nm to 700 nm (1 nm = 10−9 m) although most humans can detect light just outside that range.

Detailed explanation-3: -Frequency, the number of complete wavelengths that can pass a point in a given time, depends on the length of the wave. The shorter the wavelength, the higher the frequency. Wavelength determines the perceived color of light (and also the pitch of sound).