When Two Sound Waves Are Out of Phase by ____,Destructive

question 34

Multiple Choice

When two sound waves are out of phase by ____,destructive interference will occur.

• A)20°
• B)120°
• C)900°
• D)720°
• E)950°

---

Definitions:

Frail Elderly

Older adults who are in a weakened physical condition, often leading to increased vulnerability to health complications and dependence on others.

Dementia

Dementia is a general term for a decline in mental ability severe enough to interfere with daily life, characterized by deterioration in memory, thinking, behavior, and the ability to perform everyday activities.

Caregiver

An individual who provides assistance or support to a family member, friend, or client with physical, psychological, or developmental needs.

Public Agencies

Government or state-owned entities created to administer specific functions or to deliver public services.