Advertisements
Advertisements
प्रश्न
The ultrasound waves can penetrate into matter to a large extent because they have :
विकल्प
very high speed
very high frequency
very high wavelength
very high amplitude
Advertisements
उत्तर
Ultrasound waves can enter the metal surfaces because of their high frequency.
(b) Very high frequency.
APPEARS IN
संबंधित प्रश्न
Give two practical applications of reflection of sound waves.
Explain how bats use ultrasound to catch a prey.
Fill in the blank with suitable word .
Sound waves are caused by ...................
Name the unit used to measure the loudness of sound. Also write its symbol.
Name the characteristic of sound which can distinguish between the 'notes' (musical sounds) played on a flute and a sitar (both the notes having the same pitch and loudness).
What happens to the loudness of a sound if its amplitude decreases ?
Fill in the blank with suitable word :
Pitch of sound depends on ....................
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
Give one use of ultrasound in industry and one in hospitals.
In SONAR we use:
