Where will a person hear maximum sound, at node or antinode?

A soure of sound of frequency 165 Hz generates sound waves which get fully reflected from a wall . A person standing at the wall starts moving away from the wall. The minimum distance of the point from the wall at which the person hears maximum sound is (velcoity of sound = 330 ms^(-1) )

Statement-1 : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the antinodes Statement-2 : In a stationary wave all the particles of the medium vibrate in phase.

Assertion : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the particles of the medium vibrate in phases.

Assertion : Velocity of particles, while crossing mean position (in stationary waves) varies from maximum at antinodes to zero at nodes.

A person hears the sound of the explosion of a bomb after 5 s and another person hears the sound after 6 s. The ratio of minimum and maximum possible distance between the person is _____. ( velocity of sound in air is 330 ms^(-1) )

Two sources are placed from a person P as shown in figure. The speed of sound in air is 320 m//s . (a) If sound signal is continuously varied from 500 Hz to 2500 Hz , for which frequency listener will hear minimum sound intensity. (b) Find the frequencies in audible range (20-20000 Hz) for which listener will hear maximum sound intensity.

Figure shows a tube having sound source at one end and observe at other end. Source produces frequencies upto 10000 Hz . Speed of sound is 400 m//s . Find the frequencies at which person hears maximum intensity.