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Yes, germanium does emit far infrared radiation. Infrared radiation is part of the electromagnetic spectrum, and germanium is known for its semiconducting properties that allow it to emit and detect infrared radiation. This property makes it useful in various applications such as night vision devices and infrared sensors.

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Why must telescopes observing at far- infrared wavelengths be cool to low temperatures?

Far infrared Astronomy is the branch of astronomy and astrophysics which deals with objects visible in far-infrared radiation. The cold telescope allows the equipment to work properly


The peak intensity of radiation from a star named Sigma is 2 x 106 nm. In what spectral band is thisThe peak intensity of radiation from a star named Sigma is 2 x 106 nm. In what spectral band is this?

The peak intensity of radiation from the star Sigma at 2 x 10^6 nm falls within the infrared spectral band. Specifically, this wavelength is far beyond the visible spectrum, which ranges from approximately 400 nm to 700 nm, and is classified as far-infrared radiation.


Do planets reflect or radiate energy?

Plants both reflect and radiate energy, but in different ways and at different wavelengths: Reflection: Plants reflect energy primarily in the visible and near-infrared (NIR) parts of the electromagnetic spectrum. In the visible spectrum, chlorophyll absorbs mostly blue and red light for photosynthesis, but reflects green light — which is why most plants appear green. In the NIR range, plants reflect a significant amount of energy. This reflection helps regulate temperature and avoid overheating, as NIR energy doesn't contribute to photosynthesis. Radiation: Plants also radiate thermal (infrared) energy, just like any other object with a temperature above absolute zero. This radiation typically occurs in the mid- to far-infrared spectrum (thermal IR), corresponding to the plant’s temperature (usually around 290–310 K or 17–37 °C). This is how thermal imaging can detect plant temperature and stress. So in summary: Reflect: visible (especially green) and NIR light Radiate: thermal infrared energy (heat) #JAIDIXIT


How far away is the nearest pulsar?

The nearest known pulsar is the PSR J0108-1431, located about 424 light-years away from Earth in the constellation Cetus. Pulsars are rotating neutron stars that emit beams of electromagnetic radiation, with their distance from us varying based on their location in the Milky Way galaxy.


What makes a star visible?

The emission of energy in the form of electromagnetic radiation, such as gamma rays, x-rays, ultraviolet rays, infrared radiation, visible light, microwaves, and radio waves. These emissions are all measurable and are also used to determine how far the star is and how fast/far it is moving away from our galaxy based on the expanding universe theory.

Related Questions

Is far infrared and thermal infrared same?

Far infrared and thermal infrared are both forms of infrared radiation, but they refer to different parts of the infrared spectrum. Far infrared typically refers to the longer wavelength infrared radiation closer to the microwave region, while thermal infrared refers to the mid- to long-wavelength infrared radiation emitted by objects due to their temperature.


Do LCD TVs emit any radiation?

No, they do not. Because of the technology, LCD televisions emit far less energy than standard televisions and do not emit radiation.


What are the differences between far infrared and near infrared saunas, and how do these differences impact their effectiveness in providing health benefits?

Far infrared saunas emit longer wavelengths of infrared light, penetrating deeper into the body compared to near infrared saunas which emit shorter wavelengths. This deeper penetration may result in more efficient detoxification and increased circulation, potentially enhancing the health benefits of far infrared saunas.


What are the differences between far infrared and infrared radiation, and how do they impact their applications in various industries?

Far infrared radiation has longer wavelengths and lower frequencies compared to infrared radiation. Far infrared is often used for heating applications in industries such as healthcare, agriculture, and manufacturing. Infrared radiation, on the other hand, is commonly used in communication, remote sensing, and thermal imaging in industries like aerospace, defense, and telecommunications. The differences in their properties impact their effectiveness and suitability for different industrial applications.


What is penetration power of infrared?

The penetration power of infrared radiation depends on the specific wavelength being used. In general, near-infrared radiation has low penetration and is mostly absorbed in the skin, while mid-infrared radiation can penetrate deeper into tissues. Far-infrared radiation has the deepest penetration and can reach muscles and joints.


What wavelengths are in heat lamps?

Although they do have some visible light, heat lamps skew towards the infrared end of the spectrum. Heat lamps are designed to emit light in the Near Infrared (.7µm-1.3µm), Middle Infrared (1.3µm-6µm), Far Infrared (6µm-40µm), and Far-Far Infrared (40µm-1000µm)


Could the sun emit radiation of many wavelengths?

Yes, that is EXACTLY what the sun always does.The sun emits a near continuous spectrum from the far infrared through visible light through the far ultraviolet. It also emits some low levels of radio, microwave, x-ray, and gamma radiation.


Very low temperature molecular clouds emit most of their light in which part of the electromagnetic spectrum?

Very low temperature molecular clouds emit most of their light in the far-infrared and submillimeter parts of the electromagnetic spectrum. This is due to the low temperatures causing the atoms and molecules in the clouds to emit radiation at longer wavelengths.


Why must telescopes observing at far- infrared wavelengths be cool to low temperatures?

Far infrared Astronomy is the branch of astronomy and astrophysics which deals with objects visible in far-infrared radiation. The cold telescope allows the equipment to work properly


Does far infrared travel in straight lines?

Far infrared radiation, like other forms of electromagnetic radiation, typically travels in straight lines in a vacuum. However, when it passes through different mediums, it can be refracted or scattered, which may alter its path. The degree of deviation depends on the properties of the medium it encounters. Overall, in open space, far infrared moves in straight lines.


What do you call the radiation next to the red end of the visible spectrum?

On one side of red there is, of course, orange but in increasing wavelength and invisible to us is infrared. Infrared which is very close to red and almost visible to us is called near infrared. At longer wavelengths there is far infrared then terahertz radiation, microwaves and radio waves.


What is magnetic far infrared?

Magnetic far infrared refers to a type of therapy that involves the use of far infrared rays in combination with magnets. Far infrared rays are a type of electromagnetic radiation that is beneficial for promoting blood circulation and reducing pain. When combined with magnets, the therapy aims to enhance the overall healing process and provide relief from conditions such as inflammation and muscle soreness.