Advertisements
Advertisements
Question
The ultrasound waves can penetrate into matter to a large extent because they have :
Options
very high speed
very high frequency
very high wavelength
very high amplitude
Advertisements
Solution
Ultrasound waves can enter the metal surfaces because of their high frequency.
(b) Very high frequency.
APPEARS IN
RELATED QUESTIONS
Explain how bats use ultrasound to catch a prey.
A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.
Fill in the blank with suitable word .
Sound waves are caused by ...................
Name the three characteristics of sound.
How is an ultrasound scan for fetus (unborn baby) better than X-ray ?
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Draw labelled diagrams to represent (a) soft sound, and (b) loud sound, of the same frequency.
What is meant by the quality (or timbre) of sound ? On what factor does the quality (or timbre) of a sound depend ?
Give one use of ultrasound in industry and one in hospitals.
Explain how does SONAR work?
