A Planar Cross Section Through Two Spherical Waves Emanating from the Sources

question 30

Multiple Choice

A planar cross section through two spherical waves emanating from the sources S₁ and S₂ in the plane is shown in the figure. S₁ and S₂ are in phase. The black circles are one and two wavelengths from their respective sources. The lighter circles are one half and one and a half wavelengths distant from their respective sources. If the waves shown arriving at P₁ both arrive with amplitude A, the resultant amplitude at point P₁ is

• A) 0.
• B) .
• C) A.
• D) .
• E) 2A.

---

Definitions:

Play School

Play school, also known as preschool, is an educational establishment offering early childhood education to children prior to compulsory education at primary school.

Weekdays

The days of the week that are typically dedicated to work or school activities, usually from Monday to Friday, excluding the weekend.

Nature-Nurture Controversy

The debate over the relative contributions of genetics (nature) and environment (nurture) to the development of individual characteristics and behaviors.

Heredity

The passing of traits from parents to offspring through genes.