0
What else can I help you with?
How is light absorbed by different materials and substances?
Light is absorbed by different materials and substances when the energy from the light waves is transferred to the atoms and molecules of the material. This causes the electrons in the atoms to move to higher energy levels, absorbing the light in the process. The specific way in which light is absorbed depends on the properties of the material, such as its composition and structure.
Which one of the following types of electromagnetic radiation causes certain substance to floursce?
Ultraviolet radiation causes certain substances to fluoresce by exciting electrons in the substance to higher energy levels, which are then released as visible light.
Can opaque substances refract light?
No, opaque substances do not refract light. Refraction occurs when light passes through a transparent medium and changes speed, causing the light to bend. Opaque substances do not allow light to pass through them, so there is no refraction.
What is it called when light hits a certain metal and causes electrons in a metal to move?
The phenomenon is called the photoelectric effect, where light hitting a metal surface causes the ejection of electrons from the metal.
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.
Absorption of light by atoms of an element occurs when photons are?
Absorption of light by atoms of an element occurs when photons of light with energy levels matching the energy levels of the electrons in the atom are absorbed. This causes the electrons to move to higher energy levels, and the atom becomes excited, leading to the absorption of light.
How is light absorbed by different materials and substances?
Light is absorbed by different materials and substances when the energy from the light waves is transferred to the atoms and molecules of the material. This causes the electrons in the atoms to move to higher energy levels, absorbing the light in the process. The specific way in which light is absorbed depends on the properties of the material, such as its composition and structure.
Which one of the following types of electromagnetic radiation causes certain substance to floursce?
Ultraviolet radiation causes certain substances to fluoresce by exciting electrons in the substance to higher energy levels, which are then released as visible light.
Is it true in the phenomenon known as the photoelectric effect electric current will flow when light shines on certain substances?
Yes, in the photoelectric effect, when light shines on certain substances, electrons are ejected from the material, creating an electric current. This effect occurs when photons (light particles) transfer enough energy to electrons in the material to overcome the binding energy holding them in place.
Can opaque substances refract light?
No, opaque substances do not refract light. Refraction occurs when light passes through a transparent medium and changes speed, causing the light to bend. Opaque substances do not allow light to pass through them, so there is no refraction.
What is it called when light hits a certain metal and causes electrons in a metal to move?
The phenomenon is called the photoelectric effect, where light hitting a metal surface causes the ejection of electrons from the metal.
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 light behavior causes light to bend through water?
Light bends when it enters a different medium like water due to a change in its speed, known as refraction. Refraction occurs because light travels at different speeds in different materials, causing it to change direction at the boundary between two substances.
What occurs when light strikes a metal and electrons are released?
When light strikes a metal, it transfers energy to the electrons in the metal, causing them to be ejected in a process known as photoelectric effect. These ejected electrons are called photoelectrons and can be used in applications such as photovoltaic cells and photoemission spectroscopy. The energy of the ejected electrons is proportional to the frequency of the incident light.
How does an electric discharge occur?
An electric discharge occurs when a high voltage potential difference causes electrons to rapidly move through a medium, creating a flow of electric current. This flow of electrons can create visible light, heat, and sound, often seen in phenomena such as lightning or electrical sparks.
How do electrons jumping between energy levels contribute to the emission of light in atoms?
When electrons jump between energy levels in atoms, they release energy in the form of light. This emission of light occurs when electrons move from higher energy levels to lower energy levels, releasing photons in the process.
What happens when electrons reach the light bulb?
When electrons reach the light bulb, they flow through the filament, generating heat and light. The heat causes the filament to glow and emit light. This process is known as incandescence, where the electrical energy is converted into heat and light energy.
