Two Sinusoidal Waves, Each of Wavelength 5 M and Amplitude

question 69

Multiple Choice

Two sinusoidal waves, each of wavelength 5 m and amplitude 10 cm, travel in opposite directions on a 20-m stretched string which is clamped at each end.Excluding the nodes at the ends of the string, how many nodes appear in the resulting standing wave?

• A)3
• B)4
• C)5
• D)7
• E)8

---

Definitions:

Vulnerability-Stress Model

A psychological theory suggesting that a person's vulnerability to a disorder combines with environmental stressors to trigger the onset of the disorder.

Biopsychosocial Approach

A cross-disciplinary approach that examines how biological, psychological, and socio-environmental elements interplay in the analysis of health and disease.

Psychological Disorder

A condition characterized by abnormal thoughts, feelings, or behaviors, which impair personal functioning in various contexts.

Environmental Stressors

External forces or conditions that can potentially cause stress in an individual, influencing both mental and physical health.