- #1
Qais M.
- 4
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Does light intensity and brightness depend on amplitude?
Light waves and their properties
- Thread starter Qais M.
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- Light Light waves Properties Waves
In summary, polarizers polarize light by blocking certain orientations of light waves and allowing only one direction to pass through. The molecules in the polarizer are arranged in a way that the slits are parallel or perpendicular to the electric field of light. If they are arranged perpendicularly, the light passing through will be polarized in the same direction as the slits.
- #2
Ryan McCarty
- 6
- 1
Yes, brightness of light and its intensity depend on light wave amplitude, or the height of light waves. Brightness is also somewhat influenced by wavelength.
- #3
Qais M.
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Ryan McCarty said:
Thanks! Is there any detailed explanation on that? Thanks in advance!
- #4
Qais M.
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Light waves (in general)
1-How does the amplitude affects the brightness and intensity of light waves?
2-And why energy affects the frequency of light waves rather than their amplitude; why doesn't the amplitude increase or decrease when extra or less energy is transferred by the wave instead of the frequency?
Thanks in advance!
1-How does the amplitude affects the brightness and intensity of light waves?
2-And why energy affects the frequency of light waves rather than their amplitude; why doesn't the amplitude increase or decrease when extra or less energy is transferred by the wave instead of the frequency?
Thanks in advance!
- #5
dauto
- 1,948
- 201
1 - Brightness or Intensity are proportional to the square of Amplitude.
2 - You're confusing the energy of individual photons (which is proportional to the frequency) with the total energy of the wave (which is proportional to the square of the amplitude of the wave)
2 - You're confusing the energy of individual photons (which is proportional to the frequency) with the total energy of the wave (which is proportional to the square of the amplitude of the wave)
- #6
Qais M.
- 4
- 0
How do polarizers polarize light? Are the molecules arranged in a shape the the slits between them are parallel or perpendicular to the electric field of light? If they're perpendicularly arranged, how would light be polarized?
Related to Light waves and their properties
1. What is the electromagnetic spectrum and where do light waves fall on it?
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. Light waves fall within the visible portion of the spectrum, which ranges from approximately 400 to 700 nanometers in wavelength.
2. What are the properties of light waves?
Light waves are transverse waves, meaning the oscillations occur perpendicular to the direction of motion. They also travel at a constant speed in a vacuum, have a wavelength and frequency, and can be reflected, refracted, and diffracted.
3. How is the color of light determined?
The color of light is determined by its wavelength. Shorter wavelengths correspond to cooler colors such as blue and violet, while longer wavelengths correspond to warmer colors such as orange and red.
4. What is the relationship between frequency and energy in light waves?
The relationship between frequency and energy in light waves is direct. As the frequency of a light wave increases, so does its energy. This is known as the inverse relationship of the wave-particle duality of light.
5. How do light waves interact with matter?
Light waves interact with matter through processes such as absorption, reflection, and transmission. When light waves are absorbed, they transfer their energy to the atoms or molecules in the matter. Reflection occurs when light waves bounce off a surface, while transmission occurs when light waves pass through a material.