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What device is known when electrons are emitted when light shines on a metal surface?
The device you are referring to is a photoelectric cell or a photodiode. When light shines on the metal surface of these devices, electrons are emitted in a process called the photoelectric effect, which generates an electric current.
What does light produce in the photoelectric effect?
Light produces electrons in the photoelectric effect. When light of sufficient energy (photon energy) shines on a metal surface, it can eject electrons from the surface, creating a flow of current.
What device gives off electrons when light shines on a metal surface?
There is the photoelectric effect, which is the process that emitts electrons from a metals surface when light of a certain frequency shines on the surface. In the metal, the nuclei are surrounded by electrons, so when the incoming electrons strike the surface, they pull apart from the electrons of the metal because of how like charges detract from each other.
What is the emission of electrons from a metals surface when light of a certain frequency shines on it?
photoelectric effect
What is the phenomenon in which electrons are emitted from a metals surface when light of a certain frequency shines on it?
Photoelectric phenomenon
What device converts electromagnetic radition into heat energy?
Heat Lamp. Is a lamp that shines heat energy ( electromagnetic Energy) into the form of heat.
When light shines on a metal surface the maximum energies of emitted electrons?
depend on the frequency of the incident light. The maximum energy of emitted electrons is given by the equation E = hf - φ, where E is the maximum energy, h is Planck's constant, f is the frequency of the incident light, and φ is the work function of the metal.
What is a device that spins when the sun shines on it?
A solar panel is a device that spins when the sun shines on it to generate electricity through the photovoltaic effect.
Does the photoelectric effect occur when light shines on metal?
Yes, the photoelectric effect occurs when light shines on metal. This phenomenon involves the emission of electrons from a material when it is exposed to light. The energy of the photons in the incident light must be sufficient to overcome the work function of the metal in order for electrons to be ejected.
How do photocells convert light energy into electrical energy?
When photocells convert light energy into electrical energy many things happen. Most photocells contain silicon atoms. As long as a light shines on the photocell, electrons gain enough energy to move between atoms. The electrons are then able to move though a wire to provide electrical energy to a device, such as a calculator. Alek Peck Source Phisical Science textbook
Will indium display the photoelectric effect with UV light?
Yes, indium can display the photoelectric effect when exposed to UV light. When UV light shines on a metal surface like indium, electrons are ejected from the surface due to the photon energy exceeding the work function of the metal. This phenomenon is known as the photoelectric effect.
Is it true in he phenomenon known as the photoelectric effect electric current will flow when light shines on certain substances?
Yes, in the photoelectric effect, electric current is produced when light shines on certain substances known as photosensitive materials. This occurs when photons (particles of light) strike the material's surface and transfer their energy to electrons, causing them to be ejected and generate an electric current.
