What is an ultrasonic sound?

एक पंक्ति में उत्तर

A sound with a frequency greater than 20000 Hz is called an ultrasonic sound.

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अध्याय 6: Sound - Exercises [पृष्ठ ७०]

अध्याय 6 Sound
Exercises | Q V. 4. | पृष्ठ ७०

What determines the pitch of a sound?

Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.

Name the subjective property of sound related to its frequency.

State the factor that determine the pitch of a note.

Name the characteristic of the sound affected due to a change in its frequency.

Find the odd one out.

Define pitch.
Two wires AB and CD of same length are stretched by same amount. Which wire will produce a sound of greater pitch on plucking?
Give a reason for your answer.

The pitch is the characteristic of sound that enables us to distinguish between a flat sound and a shrill sound.

The voice of a female has a lower pitch than a male.

Find the odd one out.