Why ultrasound is useful in medical field???

It allows you to see fetuses before they are born.

Explanation:

because it has many helpful measures

it helps in breaking and crushing the kidney stones...due to its high frequency

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!