photometer

/fou'tɔmitə/
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photometer

A scientist uses a photometer to measure the light in the laboratory.

Definition
  1. Noun:
    • A scientific instrument for measuring light intensity: A photometer is a device used to measure the intensity of light, often by comparing it to a known standard source. It is a key tool in photography, physics, and astronomy.
    • Photographic equipment for measuring light: In photography, a photometer is a type of light meter used to determine the correct exposure settings by measuring the brightness of the scene.
Usage Examples
  • Noun:
    • The astronomer used a photometer to measure the brightness of the distant star.
    • For accurate exposure, the photographer relied on a handheld photometer.
Advanced Usage
  • "Photometric measurements": Refers to the process or results of measuring light using a photometer.
    • The lab's report was based on precise photometric measurements.
Variants and Related Words
  • Photometry (n): The science of measuring the intensity of light.
    • His research is in the field of photometry.
  • Photometric (adj): Relating to the measurement of light.
    • The study presented a detailed photometric analysis.
Synonyms
  • Light meter: A common synonym, especially in photography.
  • Exposure meter: Specifically refers to a photometer used to determine photographic exposure.
Related Terms (Not Phrasal Verbs)
  • Spectrophotometer: A more complex instrument that measures light intensity as a function of wavelength.
  • Lux meter: A type of photometer that measures illuminance (light falling on a surface).
photometer

A scientist uses a photometer to measure the light in the laboratory.

Noun
  1. photographic equipment that measures the intensity of light
  2. measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source

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