A point source is emitting sound in all directions. The ratio of distance of two points from the point source where the difference in loudness levels is 3 dB is: `(log_(10)2=0.3)`.

A point source that emits wave uniformly in all directions, produces wavefronts that are

Consider a point source emitting waves uniformly in all directions. a) Draw two wave fronts very near to the point source. Draw two wave fronts very near to the point source

A person standing at distance r from a point source listen the sound emitted by the source. When person move to another point having distance (r )/(10) from the point source, then increase in sound intensity level is nxx10^(1) decibles value of n is ?

A person standing at distance r from a point source listen the sound emitted by the source. When person move to another point having distance (r )/(10) from the point source, then increase in sound intensity level is nxx10^(1) decibles value of n is ?

An isotropic point source 'S' of sound emits constant power. Two points A and B are situated at distance x and 2x from S. the difference between the loudness of points A and B is about (log 2=0.3)

An isotropic point source 'S' of sound emits constant power. Two points A and B are situated at distance x and 2x from S. the difference between the loudness of points A and B is about (log 2=0.3)

Sound wave from a point source are propagating in all directions. What will be ratio of amplitudes at distances of 9 m and 25 m from the source?

Intensity of sound at a point is its distance from the source

A point source emitting uniformly in all directions is placed above a table top at a distance of 0.50 m from it. The luminous flux of the source is 1570 lumen. Find the illuminance at a small surface area of the table to a.directly below the source and b. at as distance of 0.80 m from the source.