A laser beam may pass through an optical waveguide at any incident angles as long as the incident angle is smaller than the maximum acceptance angle.
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An optical cavity is needed for a laser system to make the s…
An optical cavity is needed for a laser system to make the stimulated emission rate higher than the spontaneous emission rate.
A laser may have different transvers modes.
A laser may have different transvers modes.
33. Ivan Pavlov is most closely associated with ______.
33. Ivan Pavlov is most closely associated with ______.
15. Sensation is ______.
15. Sensation is ______.
17. For humans, the ability to ______ is probably the most…
17. For humans, the ability to ______ is probably the most important sense.
23. Our awareness of various mental processes such as makin…
23. Our awareness of various mental processes such as making decisions, daydreaming, reflecting, and concentrating is called ______.
25. A biological cycle, or rhythm, that is approximately 24…
25. A biological cycle, or rhythm, that is approximately 24 hours long is a(n) ______ cycle.
13. The ______ is the seat of awareness and reason.
13. The ______ is the seat of awareness and reason.
40. When two memory tasks are presented in different sensor…
40. When two memory tasks are presented in different sensory modalities (for instance visual and auditory) ______.