The Figure Shows Two Point Sources of Light, a and B

question 15

Multiple Choice

The figure shows two point sources of light, A and B, that emit light waves in phase with each other. A is a distance of 3λ from point P. B is distant 5λ from P. (λ is the wavelength.) The phase difference between the waves arriving at P from A and B is ​ ​

• A)0 rad.
• B)π rad.
• C)2π rad.
• D)3π rad.
• E)4π rad.

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Definitions:

Proximity

In psychology, the closeness or physical distance between people that significantly affects attraction and relationship formation; in visual perception, a principle that elements close to one another are perceived as a coherent group.

Physical Attractiveness

The degree to which a person's physical features are considered aesthetically pleasing or beautiful by others.

Similarity

The degree to which two or more things resemble each other in terms of attributes, characteristics, or qualities.

Fundamental Attribution Error

The tendency to overemphasize personality traits and underestimate situational factors when explaining others' behaviors.