Two Beams of Coherent Light Are Shining on the Same

question 85

Multiple Choice

Two beams of coherent light are shining on the same piece of white paper.With respect to the crests and troughs of such waves,darkness will occur on the paper where:

• A)the crest from one wave overlaps with the crest from the other.
• B)the crest from one wave overlaps with the trough from the other.
• C)the troughs from both waves overlap.
• D)darkness cannot occur as the two waves are coherent.

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Definitions:

Cones

Cells in the eye's retina known as photoreceptors, which are optimal in well-lit conditions and allow for the observation of colors.

Rods

Photoreceptor cells in the retina that are highly sensitive to low levels of light and are important for night vision.

Periphery

The outer limits or edge of an area or object, often referring to areas situated away from a central point.

Sensitivity

The ability to detect or respond to slight changes, signals, or influences.