What is light give two differences between light energy and solar energy
Answers
Answer:
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres, between the infrared and the ultraviolet
Explanation:
A further possible use of the term “solar energy” is using the Sun’s output to produce hot water for domestic use. However, that’s more normally called “solar water heating”.
The term “light energy” is a more general term and doesn’t refer to a particular technology. Rather, it is the inherent energy in light, either narrowly as that in visible light or, more widely, as the energy in electromagnetic radiation. At the quantum level, the energy of a photon is directly proportional to its frequency.
So, whilst it’s true to say that “solar energy” uses the energy from the light, it’s most specifically the light emitted by the Sun. On a typical photoelectric panel power is generated from a range of photon wavelengths from the near infra-red up to ultra-violet and that generates electricity directly. When it’s used as a thermal source, the Sun’s electromagnetic radiation is used over a wider part of the spectrum including all the infra-red portion.
So keep “solar power” as a term for the generation of useful power from the Sun and “light energy” as a term for the inherent power in photons and electromagnetic radiation suitably qualified by whether it’s visible light or not according to context.
Answer:
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that is perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres, between the infrared and the ultraviolet
A further possible use of the term “solar energy” is using the Sun’s output to produce hot water for domestic use. However, that’s more normally called “solar water heating”.
The term “light energy” is a more general term and doesn’t refer to a particular technology. Rather, it is the inherent energy in light, either narrowly as that in visible light or, more widely, as the energy in electromagnetic radiation. At the quantum level, the energy of a photon is directly proportional to its frequency.
So, whilst it’s true to say that “solar energy” uses the energy from the light, it’s most specifically the light emitted by the Sun. On a typical photoelectric panel power is generated from a range of photon wavelengths from the near infra-red up to ultra-violet and that generates electricity directly. When it’s used as a thermal source, the Sun’s electromagnetic radiation is used over a wider part of the spectrum including all the infra-red portion.
So keep “solar power” as a term for the generation of useful power from the Sun and “light energy” as a term for the inherent power in photons and electromagnetic radiation suitably qualified by whether it’s visible light or not according to context.
Explanation: