What is the photoelectric effect used for today?

The photoelectric effect is used in a plethora of other devices, including photocopiers, light meters and even electronicsl components such as photodiodes and phototransistors. The other fabulous application fo the photoelectric effect is scintillators.

What are the applications of photoelectric cell?

Applications of photoelectric cells : They are used in reproduction of sound in the films in cinema houses, in television and in photo telegraphy. 2. They are used in micro photometers for measuring the intensity of light and studying the fine structure of spectral lines.

Which device is based on photoelectric effect?

photoelectric cell
Devices based on the photoelectric effect have several desirable properties, including producing a current that is directly proportional to light intensity and a very fast response time. One basic device is the photoelectric cell, or photodiode.

Which of the following is not application of photoelectric cell *?

burglar alarm. exposure meter. reproduction of sound from motion pictures.

Which is the most important application of photoelectric effect?

1. Photo – cell is the most important application . It is most commonly found in solar panels. It works on the basic principle of the light striking the cathode which causes the emission of electrons, which in turn produces current. 2. Photomultiplier tube makes use of photo – electric effect to convert light intensity into electrical currents.

How are photoelectric cells used in everyday life?

Photoelectric cells were originally used to detect light, using a vacuum tube containing a cathode, to emit electrons, and an anode, to gather the resulting current. Today, these “phototubes” have advanced to semiconductor-based photodiodes that are used in applications such as solar cells and fiber optics telecommunications.

Why was the photoelectric effect placed in a dark room?

The photoelectric effect apparatus was placed in a dark room (That ensures the reliability and accuracy of the measurements. In case light that is not produced by the lamp of the apparatus strikes the lens, e.g. sunlight, then the measurements will be based on a mixture of sunlight and lamplight, lights of different frequency and brightness.

How are electrons dislodged by the photo-electric effect?

Electrons dislodged by the photo-electric effect travel down a special tube gathering more electrons. By the time they get to the end, a single electron can have gathered a million other electrons.

What is the photoelectric effect used for today? The photoelectric effect is used in a plethora of other devices, including photocopiers, light meters and even electronicsl components such as photodiodes and phototransistors. The other fabulous application fo the photoelectric effect is scintillators. What are the applications of photoelectric cell? Applications of photoelectric cells : They…