Physics, 28.07.2019 11:30 ytalbot

Low-frequency red light is used in dark rooms because it does not expose the film. this is because the red light has a low

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Answer from: cam3227

Low energy

Explanation:

The energy of the light is directly proportional to its frequency, according to the relationship:

E=hf

where

h is the Planck constant

f is the frequency of the radiation

In the visible light part of the spectrum, red light is the radiation with lowest frequency (while blue and violet are the radiation with highest frequency), therefore it is also the light with lowest energy. Therefore, it is used in the dark rooms, in order to cause the least damage to the films.

Answer from: Quest

answer: electrons

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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Low-frequency red light is used in dark rooms because it does not expose the film. this is because t...

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