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Question

In a meeting hall which is initially half-filled with participants, and after some time becomes full in capacity, then the clarity of speech
  1. increases
  2. decreases
  3. remain Same
  4. becomes zero

A
decreases
B
remain Same
C
increases
D
becomes zero
Solution
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Clarity of speech increases as the number of people in the hall is increased. Because of more people, the sound gets absorbed more, due to which reverberation time decreases and thus clarity of speech increases.

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