A school is converting a large rectangular room (length 25m, width 12m, height 6m) into a multipurpose auditorium for morning assemblies and cultural programmes. The room at present has plain concrete walls, a polished marble floor, and a bare ceiling.
a. (i) From the following list choose any three materials that would be \suitable
for reducing excessive reverberation in the auditorium: glazed tiles, thick carpets, heavy curtains, glass mirrors, cork panels, cushioned seats.
b. (ii) For each chosen material, explain briefly how its presence inside the hall will help to control reverberation.
c. (iii) Suggest one practical location in the auditorium where each of the selected materials should be installed for maximum effectiveness, and justify your choice.