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Who was responsible for the contribution that light is emitted and absorbed in bundles that are dependent on the frequency of a light wave?
The first to observe (but not explain) the photoelectric effect were Hertz and Hallwachs in 1887.
Albert Einstein received the 1921 Nobel Prize for physics:
...for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect.
His 1905 paper explaining the photoelectric effect was rejected by physicists of that time and only accepted after experiments by Robert Andrews Millikan in 1914 showed that predictions made by Einstein's theory were correct - such as that the energy of individual ejected electrons increases linearly with the frequency of the light.
What else can I help you with?
Which is the result of visible light absorbed by a metal?
When visible light is absorbed by a metal, it can lead to the promotion of electrons from the valence band to the conduction band. This can generate an excited state within the metal, potentially leading to phenomena like photoemission or a change in the metal's optical properties.
Which molecule is broken down by light absorbed in LDR?
Water is the molecule that is broken down by light absorbed in the Light-Dependent Reactions (LDR) of photosynthesis. This process results in the release of oxygen as a byproduct.
Ultraviolet radiation from the sun is absorbed in the atmosphere?
Most visible light is bounced back into space, while some of it is absorbed into the atmosphere.
Where are the light dependent reactions located?
The light-dependent reactions of photosynthesis take place in the thylakoid membranes of the chloroplasts. This is where sunlight is absorbed by chlorophyll and converted into chemical energy in the form of ATP and NADPH.
What is the smallest amount of energy that can be emitted or absorbed as electromagnetic radiation?
The smallest amount of energy that can be emitted or absorbed as electromagnetic radiation is a photon, which behaves like a particle carrying discrete energy. This minimum amount of energy is determined by the frequency of the radiation, according to Planck's equation E=hf, where E is energy, h is Planck's constant, and f is frequency.
When the frequency of light matches the natural frequency of molecules in a material light is?
When the frequency of light matches the natural frequency of molecules in a material, light is absorbed by the material. This phenomenon is known as resonance absorption.
What happen to light of certain frequency that encounters atoms of the same resonant frequency?
The light is absorbed by the atom and excites the atom.
When the frenquency of light matches the natural frequency of molecules in a material light is?
absorbed
How do you see different color surfaces?
By how much each light frequency is absorbed by the eye
When the atom of an object vibrate at the same frequency as light rays what happens to the rays?
they are absorbed
An electron gains 5.5 x 10-16 J of energy when a photon is absorbed What is the frequency of the photon that is absorbed?
8.3 x 1017 Hz
Which is the result of visible light absorbed by a metal?
When visible light is absorbed by a metal, it can lead to the promotion of electrons from the valence band to the conduction band. This can generate an excited state within the metal, potentially leading to phenomena like photoemission or a change in the metal's optical properties.
How does atmospheric attenuation vary with frequency?
Atmospheric attenuation increases with frequency. Higher frequency signals are more likely to be absorbed or scattered by particles in the atmosphere, leading to a decrease in signal strength over distance.
Which system is responsible for the reducing food to small molecules in order for it to be absorbed?
digestion
When matter absorbs a photon what is the relationship between the energy of the matter before and after the absorpion and the frequency and the wavelength of the radiation absorbed?
When matter absorbs a photon, the energy of the matter increases by an amount equal to the energy of the absorbed photon. The frequency and wavelength of the absorbed radiation depend on the energy of the photon and are inversely related - higher energy photons have higher frequencies and shorter wavelengths.
What does the symbol nu mean in chemistry?
In chemistry, the symbol nu (ν) is often used to represent the frequency of a wave or vibration. It is commonly seen in spectroscopy to describe the frequency of light absorbed or emitted by atoms or molecules.
What system is responsible for the process of reducing food to small molecules in order for it to be absorbed?
digestive
