Question

the intensity of reverberation is higher in a closed and empty house

Answer 1

1) REVERBERATION OCCURS DUE TO MULTIPLE REFLECTION OF SOUND.

2) THE FURNITURE IM THE HOUSE ACTS AS A SOUND ABSORBING MATERIAL.

3) SO IF THE HOUSE IS CLOSED AND EMPTY, REFLECTION OF SOUND WILL BE MAXIMUM AND HENCE INTENSITY OF REVERBERATION IS HIGHER.