How did Albert Einstein explain the photoelectric effect?A.Light is made of electrons.B.Light is made of atoms.C.Light is made of electricity.D.Light is made of photons.
Question
How did Albert Einstein explain the photoelectric effect?A.Light is made of electrons.B.Light is made of atoms.C.Light is made of electricity.D.Light is made of photons.
Solution
Albert Einstein explained the photoelectric effect by proposing that light is made of photons. So, the correct answer is D. Light is made of photons.
Here's a step-by-step explanation:
-
Einstein proposed that light is made up of packets of energy called photons.
-
When these photons hit the surface of a metal, they transfer their energy to the electrons in the metal.
-
If the energy of the photon is high enough, it can knock an electron out of the metal. This is known as the photoelectric effect.
-
The energy of a photon is directly proportional to its frequency, not its intensity. This was a revolutionary idea at the time and one of the key ideas that led to the development of quantum mechanics.
Similar Questions
What happens to electrons in the photoelectric effect?A.They are made to orbit faster.B.They are knocked away from atoms.C.They are turned into light.D.They are added to atoms.
The photoelectric effect was crucial in the development of modern physics because it demonstrated theSelect one:a.wave nature of the electron.b.localization of most of the mass of an atom in the nucleus.c.wave nature of light.d.particle nature of light.e.validity of the special theory of relativity.
In order to explain the results of a photoelectric effect experiment, quantum physics suggests that:(select all that apply)Question 3Answera.light energy is quantised (in the form of photons)b.electron energies are quantised into levelsc.electrons store the energy from several photons to build up and excite over time.d.electrons can interact with photons only on an all or nothing basise.electrons can absorb any energyf.electrons can only be ejected from a metal with an excess negative charge
Write three characteristic features in photoelectric effect which cannot be explained on the basisof wave theory of light, but can be explained only using Einstein’s equation
What is photoelectric effect?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.