+91-8076753736 support@wiredfaculty.com

Sponsor Area

Sound

Question

Wired Faculty App

What are ultrasounds? How are they useful to us?

Solution

Sounds with frequency above 20 KHz are called ultrasound.

Ultrasounds are not audible to human beings, but is used in a variety of field by humans. Ultrasounds are used in field of medicine to detect the disorders inside the body of human beings. They are also useful in chemical industries. They are used to detect the flaws and cracks in metallic structures.

Some More Questions From Sound Chapter

State True or False:

Unwanted or unpleasant sound is termed as music.

State True or False:

Noise pollution may cause partial hearing impairment.

Time taken by an object to complete one oscillation is called __________.

Loudness is determined by the __________ of vibration.

The unit of frequency is ________.

Unwanted sound is called _________.

Shrillness of a sound is determined by the _________ of vibration.

Identify the part which vibrates to produce sound in the following instrument:

Dholak

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation