Question

Explain photometry with the help of working.

Answer 1

1. Photometry is the science of measurement of light
2. The definition of photometry is in terms of the perceived brightness of light in human eyes
3. The radiant power of each wavelength is weighted against a luminosity function
4. The luminosity function shows the behavior of the human eye under bright light
5. In the field of astronomy, photometry is concerned with the measurement of the Flux of the EM waves by an astronomical object