Class 11 Exam > Class 11 Questions > The light radiations with discrete quantities...
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The light radiations with discrete quantities of energy are called ___________ .
- a)photons
- b)laser
- c)radar
- d)photo electron
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The light radiations with discrete quantities of energy are called ___...
A photon is the quantum of electromagnetic radiation. The term quantum is the smallest elemental unit of a quantity, or the smallest discrete amount of something. Thus, one quantum of electromagnetic energy is called a photon. The plural of quantum is quanta.
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Community Answer
The light radiations with discrete quantities of energy are called ___...
The correct answer is option 'A'.
Explanation:
- Light is a form of electromagnetic radiation, which means it consists of waves and particles.
- The particle nature of light is described by the concept of photons.
- Photons are discrete packets or quanta of energy that make up electromagnetic radiation, including visible light.
- Each photon carries a specific amount of energy, which is determined by its frequency or wavelength.
- The energy of a photon is given by the equation E = hf, where E is the energy, h is Planck's constant, and f is the frequency of the light wave.
- The energy of a photon is quantized, meaning it can only take on certain discrete values.
- This is in contrast to classical physics, where energy can take on any value.
- The concept of photons helps to explain several phenomena, such as the photoelectric effect, where light can cause the ejection of electrons from a material.
- When light interacts with matter, it can be absorbed or emitted in discrete amounts corresponding to the energy of individual photons.
- This concept is fundamental to our understanding of light and its interaction with matter in fields such as quantum mechanics and photonics.
- Therefore, the light radiations with discrete quantities of energy are called photons.
Explanation:
- Light is a form of electromagnetic radiation, which means it consists of waves and particles.
- The particle nature of light is described by the concept of photons.
- Photons are discrete packets or quanta of energy that make up electromagnetic radiation, including visible light.
- Each photon carries a specific amount of energy, which is determined by its frequency or wavelength.
- The energy of a photon is given by the equation E = hf, where E is the energy, h is Planck's constant, and f is the frequency of the light wave.
- The energy of a photon is quantized, meaning it can only take on certain discrete values.
- This is in contrast to classical physics, where energy can take on any value.
- The concept of photons helps to explain several phenomena, such as the photoelectric effect, where light can cause the ejection of electrons from a material.
- When light interacts with matter, it can be absorbed or emitted in discrete amounts corresponding to the energy of individual photons.
- This concept is fundamental to our understanding of light and its interaction with matter in fields such as quantum mechanics and photonics.
- Therefore, the light radiations with discrete quantities of energy are called photons.
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The light radiations with discrete quantities of energy are called ___________ .a)photonsb)laserc)radard)photo electronCorrect answer is option 'A'. Can you explain this answer?
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