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.

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Definitions:

EAR

Effective Annual Rate, which measures the real return on an investment or the real interest rate on a loan, accounting for the effect of compounding.

Compounded Annually

The process where the interest earned on an investment is added to the principal, and the new total amount earns interest the following year, leading to exponential growth.

Compounded Monthly

Interest calculation method where interest is added to the principal balance each month, and future interest is calculated on the new total.