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A barcode reader emits a beam of light, typically from a laser or LED, to scan the barcode. When the light hits the barcode, it reflects back differently depending on the pattern of black and white bars. The reader captures the reflected light and converts it into an electrical signal, which is then processed to identify the encoded information. This allows the reader to translate the barcode into a readable format, such as a product number or description.

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Is an optical reader that uses laser beams to read bar codes?

Yes, an optical reader that uses laser beams to read bar codes is commonly known as a laser barcode scanner. These devices emit laser light to scan and capture the information encoded in bar codes, which is then processed and converted into readable data. Laser scanners are widely used in retail, logistics, and inventory management due to their speed and accuracy. They can read bar codes from a distance and are often preferred for their efficiency in high-volume scanning environments.


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To check computer codes on a 1994 Ford Aspire, a person will need a code reader specific to a Ford for that year. Insert the code reader in the slot provided just under the dash on the right side of the steering wheel. Wait a few minutes and read the code. Some code readers emit a green light or beep when they are finished coding.


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Non metals cannot emit a colored light.


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Some bodies in space that emit light include stars, galaxies, and active galactic nuclei. Stars emit light through nuclear fusion in their cores, while galaxies and active galactic nuclei emit light from the energy produced by supermassive black holes at their centers.


If the sequence ATG codon in a specific firefly should become ATA after a mutation will the firefly be able to emit light?

If the ATG codon is mutated to an ATA codon, the firefly may still be able to emit light. If the amino acid it codes for stays the same, the fly will emit light.


How do bats create sounds?

Bats create sound based on location, like sonar. when they travel they emit sonar like waves to identify objects. Echolocation


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Bats use echolocation to identify objects. They emit high-frequency sound waves, which bounce off objects and return to the bat, allowing them to determine the object's size, shape, distance, and texture based on the echoes they receive. This helps bats navigate and locate prey in the dark.


Which elements may be excited using a Bunsen burner flame?

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The word 'emit' is a verb (emit, emits, emitting, emitted), meaning to give off, or send out.Example: The valve will emit steam when the water boils.The noun forms for the verb to emit are emitter and emission.


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The word "remit" rhymes with emit.


What is the adjective of emit?

The adjective form of "emit" is "emitted."


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Humans emit carbon dioxide by breathing. They also emit carbon dioxide by belching and they emit methane by farting.