Range of Hearing

All animals also communicate in the human audible frequency range.

The audible range of humans is $10 \mathrm{Hz}-10 \mathrm{kHz}$.

Which among the following is the frequency of sound used by bats to communicate?

For cleaning spiral tubes and electronic components, supersonic sound is being used.

What are the main differences between ultrasonic sound and supersonic sound?

Ultrasonic sound is having the same speed as that of supersonic sound.

Select the properties of ultrasonic sound waves from the following.

What are the properties of ultrasonic sound waves?

Ultrasonic sound is used by bats for travelling and finding its food.

What do you mean by ultrasonic sound?

The ultrasound waves are used for scanning.

Write some applications of ultrasound in our life.

Ultrasonic waves gets _____ if there is a flaw or cracks in a metal body.

Supersonic sound refers to sound waves that

The produced rays in sonography are

__________________ is used for examination of the foetus during pregnancy to detect congenial defects and growth abnormalities.

Using the ultrasound scanner, the ultrasonic waves travel through the tissues of the body and get reflected from a region where there is a change of tissue _____________.

Ultrasonic waves are made to reflect from various parts of the heart and form the image of the heart. This technique is called ____________________.

Ultrasound is _______________ back from the defective locations inside a metal block.

In ultrasonography,