If Two Identical Waves with a Phase Difference of 3 $\pi$

question 46

Multiple Choice

If two identical waves with a phase difference of 3 $\pi$ are added,the result is

• A)a wave with the same frequency but twice the amplitude.
• B)a wave with the same amplitude but twice the frequency.
• C)a wave with zero amplitude.
• D)a wave with an intensity equal to the sum of the intensities of the two waves.
• E)This problem cannot be solved without knowing the wavelengths of the two waves.

Calculate and interpret marginal means in factorial designs.

Identify the presence of significant main effects based on differences between marginal means.

Understand the impact of factorial designs on the interpretation of variable effects.

Learn the procedure to calculate the total number of combinations in a factorial design.

---

Definitions:

Polygraph

A machine used to detect and record changes in physiological processes such as heart rate, breathing, and perspiration, often used in lie detection.

Physiological Measurement

The process of recording biological activities, such as heart rate or brain activity, often used in psychological research to assess responses.

Lie-Detector Test

A technique that attempts to determine if someone is lying by measuring physiological responses, such as blood pressure, pulse, and skin conductivity.

Genetics

The branch of biology that studies genes, heredity, and genetic variation in living organisms.