It Is Often Necessary to Change the Physical Direction of Propagation

question 19

Multiple Choice

It is often necessary to change the physical direction of propagation or the wave's polarization in waveguides. What is the purpose of a twist section?

• A)To produce shunting reactance across the guide
• B)To change the plane of polarization of the wave
• C)To change the physical direction of propagation
• D)So low received power does no damage to the powerful transmitter output

Comprehend the various stages in David Marr's model of vision and the role of bottom-up knowledge.

Compare different models of perception including template matching, featural analysis, prototype matching, and the pandemonium model.

Appreciate the extent and limits of perceptual learning through examples like expert wine tasters.

Understand the differences between the Gibsonian theory of direct perception and other perceptual approaches.

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