Laser

The video explains that lasers produce light within a narrow frequency band, with electromagnetic waves that are coherent, meaning their peaks and troughs are in step. This coherence makes lasers particularly useful for encoding data. The term 'laser' is an acronym for 'light amplification by stimulated emission of radiation'.

What characteristic of laser light allows it to be produced within a very narrow frequency band?

• Its speed

• Its high intensity

• Its synchronized electromagnetic waves

• Its color

Which of the following is NOT a feature of laser light production?

• Random phase alignment

• Coherent light

• Narrow frequency band

• Synchronized electromagnetic waves

Why is the coherence of laser light particularly useful?

• It enables the light to travel faster

• It allows for a wide range of colors

• It is essential for encoding data

• It makes the light more visible

In what way does the coherence of laser light benefit data encoding?

• It enhances the color of the data

• It reduces the cost of data storage

• It allows for more precise data encoding

• It increases the speed of data transfer

What does the acronym 'laser' stand for?

• Light Amplification by Spontaneous Emission of Radiation

• Light Accumulation by Spontaneous Emission of Rays

• Light Amplification by Stimulated Emission of Radiation

• Light Accumulation by Stimulated Emission of Rays