What variable affects the natural frequency of an organ pipe?

pipe length, width, area, or use.

The natural frequency of an organ pipe depends on the pipe length.

Explanation:

An organ pipe is an instrument which is used to produce sound. The organ pipe are of two types i.e. closed pipe and organ pipe.

Mathematically, the frequency of closed organ pipe is given as :

For open organ pipe :

Where,

n is the number of overtones

v is the speed of sound

l is the length of the pipe.

Hence, the correct option is (a) " pipe length ".

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.