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This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
A cinema theatre has a volume of 750m2. What should be the total absorption in the theatre if the reverberation time of 1.5seconds is to be maintained? |
A. | 835 open window units |
B. | 1125 open window units |
C. | 500 open window units |
D. | 750 open window units |
Answer» B. 1125 open window units | |
2. |
What happens when window panel sections of the wooden portions are thrown into vibrations to produce new sounds? |
A. | Vibrations are produced |
B. | Resonance occurs |
C. | Echoes are produced |
D. | Absorption occurs |
Answer» C. Echoes are produced | |
3. |
Sound produced from equally spaced steps in a stair case at regular intervals is due to which effect? |
A. | Reverberation effect |
B. | Noise effect |
C. | Absorption effect |
D. | Echelon effect |
Answer» E. | |