How can you determine if a hill or mountain is represented on a topographic map?

Contour lines connect all the points on a map that have the same elevation and therefore reveal the location of hills, mountains, and valleys. While a road map shows where a road goes, a topographic map shows why.

For example, the road bends in order to go around a hill or stops at the top of a mountain.

Explanation:

As w = 2000π

2πf= 2000π

f= 1000Hz

speed = wavelength × f= w/k

wavelength = 2000π/ (0.5× 1000)

= 4π

or

12.57