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What is the reverse process of photoelectric effect?
reverse process of photo electric effect is done by the supply of electrons or heat to the metal that radiate certain radiation. among them the metals which emit visible radiation are normally used in house hold appliances
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 Substances that conduct an electric current under certain conditions are most likely to be?
Substances that conduct an electric current under certain conditions are most likely to be metals or solutions containing ions. Metals have free electrons that can move through the material, allowing for the flow of electric current. Ionic solutions contain ions that can move and carry charge, enabling them to conduct electricity.
How did the photoelectric effect make modifications to the Rutherford model necessary?
The photoelectric effect demonstrated that light has particle-like properties, contradicting the Rutherford model's assumption that electrons could exist in any orbit around the nucleus. This phenomenon showed that electrons could only be emitted from a material when exposed to light of a certain frequency, implying quantized energy levels. Consequently, this led to the development of the Bohr model, which introduced quantized orbits for electrons, aligning better with the observed behavior of electrons and light.
What cell part allows only certain substances to difuse into and out of the cell?
The cell's membrane allows only certain substances to diffuse in and out of the cell.
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.
What is the phenomenon in which electrons are emitted from a metals surface when light of a certain frequency shines on it?
Photoelectric phenomenon
Is it true that in phenomenon known as the Doppler effect electric current will flow when light shines on certain substances?
It is not true that the Doppler effect has anything to do with electricity and the flow of current. The Doppler effect involves pitch and sound frequency of moving objects, for example the apparent noise changes of an approaching car.
What occurs when light causes electrons to move when it hits some substances?
When light hits certain substances, the energy from the light can be absorbed by electrons in the material, causing them to become excited and move to a higher energy level. This movement of electrons generates an electrical current, a phenomenon known as the photoelectric effect.
How a substances gets electric charge?
basically metals get charged by getting extra electrons or by missing them. baut certain substances get there charges by a physical phenomenon ,like friction ,heating,or any chemical reactions , it all results in electron transfers, and the substance get charged.
What is the reverse process of photoelectric effect?
reverse process of photo electric effect is done by the supply of electrons or heat to the metal that radiate certain radiation. among them the metals which emit visible radiation are normally used in house hold appliances
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.
In the phenomenon known as the Doppler Effect electrons are ejected when light shines on the certain substances?
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
In the phenomenon known as the Doppler Effect electrons are ejected when light shines on certain substances.?
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
What is non linear refraction?
The phenomenon whereby the refractive index of certain substances varies with light intensity
In the phenomenon known as the Doppler Effect electrons are ejected when light shines on certain substances?
The Doppler Effect is the change in the frequency of the sound you hear when a car sounding its horn passes you.When the electrons at the surface of an object absorb incident light sufficient for them to escape the surface this is known as the photoelectric effect.
Substances that conduct an electric current under certain conditions are most likely to be?
metalloids
