The Y Component of the Electric Field of an Electromagnetic

question 44

Multiple Choice

The y component of the electric field of an electromagnetic wave traveling in the +x direction through vacuum obeys the equation E_y = (375 N/C) cos[kx - (2.20 × 10¹⁴ rad/s) t].What is the wavelength of this electromagnetic wave? (c = 3.0 × 10⁸ m/s)

• A) 0.272 µm
• B) 1.36 µm
• C) 2.72 µm
• D) 8.57 µm
• E) 17.1 µm

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Definitions:

Halo Effect

A cognitive bias where the perception of one positive quality in a person leads to the unjustified extension of positive evaluation to other qualities.

Favorable Impression

The positive perception or judgment of someone or something based on initial interactions or information.

Interview Bias

A type of response bias that occurs in research when the interviewer’s beliefs, views, or characteristics unduly influence the subject's responses, leading to skewed results.

Subject Bias Effect

The influence of a participant’s preconceptions or expectations on their behavior in an experiment, potentially skewing results.