when photons got enough energy and getting out from that meterial electric current produced from that movement called photo electric.
yes alkali metals are suitable for photo electric emission
Photo electrons. So current due to these photo electrons is named as photo electric current.
photo electric transducer
photo electric effect,compton's effect
photo electric effect,compton's effect
Smoke alarms typically use photo-electric sensors or alpha-particle emitters, although the photo-electric sensors are much better for detecting smoldering fires.
At present, the current price range for electric photo frames is anything from 50$ and more. The price very much depends on the memory the photo frame has.
A semiconductor device that produces electric current through the photo-voltaic effect is a solar cell. When sunlight shines on the cell, it creates an electric current by releasing electrons from the material. This electric current can then be harnessed for various applications, such as generating electricity for homes or powering electronic devices.
it was for photo electric effect ~_~
By using photo electric emission phenomenon.
1921 for his work on the photo electric effect
The Nobel Prize for his work on the photo-electric effect.