Physics, 27.03.2020 18:17 pinkdolphinc01

Emote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called

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Answer from: snikergrace

Complete Question:

Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called A) infrared B) microwaves C) ultraviolet D) x-rays.

Correct Option:

Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called "infrared".

Option: A

Explanation:

An IR remote or transmitter utilizes light to deliver signals to the system it regulates from the remote to. It produces invisible infrared light pulses which correlate to different binary codes. These codes are instructions like power-on button, volume-up and down, or channel up and down button.

The visible light color is red, with the longest wavelength and the lowest amount of energy. Infrared is the spectrum's invisible field, with wavelengths only longer than the red light. Microwaves, ultraviolet, and x-rays are all too powerful for remote control applications.

Answer from: Quest

answer: b.

explanation:

Answer from: Quest

Acetic acid /əˈsiːtɪk/, systematically named ethanoic acid /ˌɛθəˈnoʊɪk/, is a colourless liquid organic compound with the chemical formula ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called glacial acetic acid. vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to polyvinyl acetate and cellulose acetate. it is classified as a weak acid since it only partially dissociates in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7 3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366 chemblchembl539 chemspider171 drugbankdb03166 echa infocard100.000.528ec number200-580-7e numbere260 (preservatives)gmelin reference1380iuphar/bps1058keggd00010 meshacetic+acidpubchem cid176rtecs numberaf1225000uniiq40q9n063p un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4) key: qtbsbxvteameqo-uhfffaoysa-n smilescc(o)=o

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Emote controls use invisible light of frequency just below the visible range. This part of the elect...

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