Question

Echoes are heard when we shout in an empty hall. But when the hall is full of people no echoes are heard why?

• A. Echoes are subdued in the noise of people
• B. Soft clothes of people absorb sound instead of reflecting it
• C. Destructive interference of sound takes place
• D. Excessive reverberations take place

Answer 1

Answer:

D. Excessive reverberations take place

Echoes are heard when we shout in an empty hall. But when the hall is full of people no echoes are heard because excessive reverberations take place.