infrared light
Học thuậtThân thiện
Definition
- Noun:
- Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves: "Infrared light" refers to a type of invisible electromagnetic energy. It is felt as heat and is used in various technologies like remote controls, thermal imaging, and certain types of communication.
Usage Examples
- Noun:
- The security camera uses infrared light to see in the dark.
- Remote controls for televisions often transmit signals using infrared light.
- Scientists study the universe by detecting infrared light from distant stars.
Advanced Usage
- "to detect infrared light": to sense or identify the presence of infrared radiation.
- Some snakes can detect infrared light to locate warm-blooded prey.
- "to emit infrared light": to give off or produce infrared radiation.
- All objects with a temperature above absolute zero emit infrared light.
Variants and Related Words
- Infrared (IR) (adj/n): A common abbreviation for infrared light or the infrared part of the spectrum.
- The image was taken with an infrared camera.
- Infrared radiation (n): A more technical term synonymous with infrared light.
- Infrared radiation is a form of energy transfer.
Synonyms
- Thermal radiation: Often used when referring to the heat-carrying property of infrared light.
- IR light: A common abbreviated form.
Related Phrases
- Infrared spectrum: The range of wavelengths that constitute infrared light.
- Water vapor absorbs certain bands within the infrared spectrum.
- Near-infrared / Far-infrared: Subdivisions of the infrared spectrum based on wavelength.
- Near-infrared light is closest to visible light, while far-infrared is closer to microwaves.
Related Concepts
- Electromagnetic spectrum: The full range of electromagnetic waves, of which infrared light is a part.
- Infrared light occupies a specific position on the electromagnetic spectrum between visible light and microwaves.
Noun
- electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves