Photometer is used to measure
- Kinetic energy of liberated electrons
-
Intensity of light
- frequency of light
- wavelength of light
The correct answer is: B
Explanation
A photometer is used to measure the intensity of light.
Photometers can determine the brightness of light sources, compare light intensity from different sources, or measure the amount of light reaching a specific point. They are commonly used in photography, astronomy, and various scientific applications to ensure proper lighting conditions
There is an explanation video available .