Question

1) In most of the cases, we cannot see the vibrations of a sound-producing object?

2) Write any two uses of ultrasonic sound?​

Answer 1

Answer:

1) Mostly, a sound-producing object vibrates at a faster rate that we cannot see its vibrations with our naked eyes. ... Hence, we see the object in static mode rather than in vibration mode.

2) The uses of ultrasonic sounds are:

• They are used in medical field for diagnosis and treatment of internal illnesses of the human body.
• Using ultrasound, kidney stones can be broken into small grains which later on get flushed out through the urine.
• Ultrasonography is used to examine the foetus during pregnancy.

Explanation:

hope it helps you.

Answer 2

Answer:

This is because in most of the cases, a sound producing object vibrates so fast that we cannot see its vibrations with our eyes.

hope it is helpful to you