Write to practical application of ultrasonic sound

1) it is used to get image of heart. it is called Echocardiography.

2) it is used to clean hard to reach parts of different machine parts.

hi mate,

Applications of Ultrasonics

Ultrasonics waves are noninvasive medical tool .

• cancer treatment and neurosurgery .

• to clean teeth and also for dental cutting .

• used for cataract treatment .

• A fetus in the womb can be viewed in a sonogram .

• Focused ultrasound may be used to break up kidney stones .

• Low - intensity ultrasound has the ability to stimulate bone - growth .

• Ultrasonics guides the blind person who uses ultrasonic guiding stick as a guiding tool

i hope it helps you.

answer:

3.5

explanation:

dv/dt=a

v^2=180-7x

by differentiation

2dv/dt=(-7)

dv/dt=3.5

so

a=3.5

when an uncharged capacitor is connected to battery deflection is shown by galvanometer ..to ensure continuity when next time uncharged   capacitor is connected deflection is shown in opposite direction..