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The refractive index of water at 20 C is listed as 4/3 .
That means the speed of light in it would be 0.75c =
- 224,844.343 kilometers per second
- 139,712 miles per second
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoThe 'normal' speed of sound is 340 m/s in dry air at room temperature and pressure.
From your question, it appears we should differentiate the terms "ultrasonic" and "supersonic".
Ultrasonic relates to sonic frequencies higher than 20 KHz, i.e. beyond audible range. For a given gas, the speed of sound is independent of the frequency of the sound measured and also independent of the density of the gas.
Supersonic relates to a speed of an object greater than the normal speed of sound (340 m/s in air at STP) and usually the phenomena associated with it.
The speed of sound is also a functionof the medium through which it's passing. For example, the speed of sound through water is 1,500 m/s, and is slightly over 5,000 m/s in iron.
So to answer your question, the speed of ultrasound in airis340 m/s for the reasons given.
Mohammed Badi
The speed of ultrasound waves in a particular medium varies from 330 meters per second (m/sec) in air to 1450 m/sec in fat, 1570 m/sec in blood, and 4080 m/sec in the skull. Hence, ultrasound travel through the air with speed of 330 m/s.
Wiki User
∙ 12y agoIts 1500 m/sec.
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What is the standard value of velocity and wavelenght of ultrasonic waves in benzene?
The standard value of velocity of ultrasonic waves in benzene liquid is 1260 m/sec.
How can you trace ultrasonic waves?
What?! Trace ultrasonic waves? Are you one hundred per cent cuckoo?! Why would anyone trace ultrasonic waves these days??
Why ultrasonic waves are not electromagnetic waves?
No. They are mechanical waves, ultrasonic waves are sound waves and require a medium for propagation. The word ultrasonic denotes that they have a frequency above the audible range (above 20 KHz).
What is the difference between ultrasonic and supersonic waves?
a sound wave transmitted at a frequency greater than 20,000 per second, or beyond the normal hearing range of humans. The specific wavelength is equal to the velocity divided by the frequency. this wave is generated from tranducers, tranducers converts the electrical energy into mechanical energy(wave), i.e ultrasonic wave.supersonic waves are those wave whose velocity are greater than the sound wave. Supersonic waves are generated by high explosives.
Can ultrasonic wave pass through 1Cm thick iron plate?
Yes. Ultrasonic waves can pass through metal. The only difference between "normal" sound waves and ultrasonic waves is that we cannot hear ultrasonic waves. However, they behave the same.
What is the standard value of velocity and wavelenght of ultrasonic waves in benzene?
The standard value of velocity of ultrasonic waves in benzene liquid is 1260 m/sec.
How are ultrasonic waves detected by acoustic grating?
by finding the velocity
What are the properties of ultrasonic waves?
THE ULTRASONIC WAVES have constant velocity in homogeneous medium. Many modes of vibration. High resolution,used for flaw detection Sonic beam and highly energetic. reflection and refraction in interface.so elastic
Which animal can hear ultrasonic waves?
whale can hear ultrasonic sound waves.
How can you trace ultrasonic waves?
What?! Trace ultrasonic waves? Are you one hundred per cent cuckoo?! Why would anyone trace ultrasonic waves these days??
Why ultrasonic waves are not electromagnetic waves?
No. They are mechanical waves, ultrasonic waves are sound waves and require a medium for propagation. The word ultrasonic denotes that they have a frequency above the audible range (above 20 KHz).
What is the difference between ultrasonic and supersonic waves?
a sound wave transmitted at a frequency greater than 20,000 per second, or beyond the normal hearing range of humans. The specific wavelength is equal to the velocity divided by the frequency. this wave is generated from tranducers, tranducers converts the electrical energy into mechanical energy(wave), i.e ultrasonic wave.supersonic waves are those wave whose velocity are greater than the sound wave. Supersonic waves are generated by high explosives.
Can ultrasonic waves be polarized?
No. Only transverse waves can be polarized Ultrasonic wasves are sound waves, therefore are longitudinal.
Are ultrasonic waves called as electromagnetic wave?
No ultrasonic waves are not a form of electromagnetic wave. Ultrasonic waves are nothing more than high frequency sound waves. They can be made with a suitable speaker or transducer.
Can ultrasonic wave pass through 1Cm thick iron plate?
Yes. Ultrasonic waves can pass through metal. The only difference between "normal" sound waves and ultrasonic waves is that we cannot hear ultrasonic waves. However, they behave the same.
Which waves are used in sonography?
ultrasonic waves
What are the properties of ultrasonic?
THE ULTRASONIC WAVES have constant velocity in homogeneous medium. Many modes of vibration. High resolution,used for flaw detection Sonic beam and highly energetic. reflection and refraction in interface.so elastic
