- What is the phenomenon of prolonged sound due to multiple reflections?
- Answer: Reverberation
- Explanation: Reverberation occurs when sound waves reflect multiple times in an enclosed space, making the sound persist longer.
- Where is reverberation commonly observed?
- Answer: Auditorium
- Explanation: Large enclosed spaces like auditoriums experience reverberation due to repeated sound reflections from walls and ceilings.
- What type of surfaces cause more reverberation?
- Answer: Hard
- Explanation: Hard and smooth surfaces reflect sound effectively, increasing reverberation in an environment.
- Which material is commonly used to reduce reverberation in halls?
- Answer: Draperies
- Explanation: Soft materials like draperies, carpets, and acoustic panels absorb sound, reducing reverberation.
- Which sound phenomenon causes speech to become unclear in a large hall?
- Answer: Reverberation
- Explanation: Excessive reverberation results in overlapping sounds, making speech difficult to understand.
- Which device is used in auditoriums to improve sound clarity by controlling reverberation?
- Answer: Soundboard
- Explanation: Soundboards are placed strategically to direct sound efficiently and reduce excessive reverberation.
- Which factor influences the duration of reverberation in a room?
- Answer: Size
- Explanation: The larger the room, the longer the sound waves take to reflect, increasing reverberation time.
- What is the unit used to measure reverberation time?
- Answer: Seconds
- Explanation: Reverberation time is measured in seconds, representing how long sound persists after the source stops.
- What is the ideal reverberation time for a concert hall?
- Answer: 1.5s
- Explanation: A reverberation time of 1.5 seconds is considered optimal for music clarity in concert halls.
- Which type of rooms require minimal reverberation?
- Answer: Recording studio
- Explanation: Recording studios use sound-absorbing materials to minimize reverberation and ensure clear audio recordings.
