When mechanical waves have a frequency below the audible range, these are called (a) Sonics (b) Infrasonics (c) Ultrasonics (d) Supersonics

When mechanical waves have a frequency below the audible range, these are called (a) Sonics (b) Infrasonics (c) Ultrasonics (d) Supersonics
by

1 Answer

Answer :

Ans:(b)
by
selected

Related questions

Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Description : Sound of frequency below 20 Hz are called (a) Audio sounds (b) Infrasonics (c) Ultrasonics (d) Supersonics

Last Answer : Ans:(b)

The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as – (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as – (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Last Answer : (1) Audible sounds Explanation: An audio frequency is characterized as a periodic vibration whose frequency is audible to the average human. It is the property of sound that most determines ... 000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.

The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Description : The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as (1) Audible sounds (2) Ultrasonics (3) Infrasonics (4) Megasonics

Last Answer : Audible sounds

Ultrasonics and infrasonics are not detected by __________. a)humans b)animals c)birds d)all of them

Description : Ultrasonics and infrasonics are not detected by __________. a)humans b)animals c)birds d)all of them

Last Answer : a)humans

Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Description : Sound of frequency below 20 Hz is called ______. (1) audio sounds (2) infrasonic (3) ultrasonic (4) supersonics

Last Answer : (2) infrasonic Explanation: The term "infrasonic" applied to sound refers to sound waves below the frequencies of audible sound and nominally includes anything under 20 Hz.

What are audible sound waves? (1) Having frequency less than 20 Hz (2) Having frequency between 20 Hz to 20000 Hz (3) Having frequency more than 20000 Hz (4) None of above

Description : What are audible sound waves? (1) Having frequency less than 20 Hz (2) Having frequency between 20 Hz to 20000 Hz (3) Having frequency more than 20000 Hz (4) None of above

Last Answer : (2) Having frequency between 20 Hz to 20000 Hz

The human audible frequency range is

Description : The human audible frequency range is

Last Answer : 20Hz to 20,000 Hz.

What is audible range ?

Description : What is audible range ?

Last Answer : The vibrational range within which we hear the sound we hear is called the amplitude range. Human hearing range is between 20 Hz - 20000 Hz . This means that people can hear sounds generated within this range, sounds less than 20 Hz or more than 20000 Hz .

The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of - (1) 45-50 decibels (2) 200-250 decibels (3) 5-10 decibels (4) 2000-2500 decibels

Description : The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of - (1) 45-50 decibels (2) 200-250 decibels (3) 5-10 decibels (4) 2000-2500 decibels

Last Answer : (3) 5-10 decibels Explanation: Hearing range usually describes the range of frequencies that can be heard by an animal or human, though it can also refer to the range of levels. In humans the audible ... as low as 12 Hz under ideal laboratory conditions, to 20 kHz in most children and some adults.

What is the normal audible range of the human ear?

Description : What is the normal audible range of the human ear?

Last Answer : 20 Hz to 20 kHz.

The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of (1) 45-50 decibels (2) 200-250 decibels (3) 5-10 decibels (4) 2000-2500 decibels

Description : The standard audible capacity of a healthy human being as per World Health Organi-sation is in the range of (1) 45-50 decibels (2) 200-250 decibels (3) 5-10 decibels (4) 2000-2500 decibels

Last Answer :  5-10 decibels

Boring question #78; sonics aka silencers are they that quiet really or does size matter?

Description : Boring question #78; sonics aka silencers are they that quiet really or does size matter?

Last Answer : The mythbusters did an episode on that recently. “Silencers” do not make gun shots quiet. Just a bit less loud.

What is going to be the name of the former Super Sonics?

Description : What is going to be the name of the former Super Sonics?

Last Answer : There are a few proposed names: Thunder, Twisters, Thunderbirds… None of the names seem right. I’m sure Oklahomas will get it sorted out soon, now that the team is headed here.

Do you know sonic's phone number?

Description : Do you know sonic's phone number?

Last Answer : Sonic phone number is +15552738

In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Description : In modulation technique, which of the following is referred to audible pitch? A. Width B. Frequency C. Harmonic D. Amplitude

Last Answer : B. Frequency

Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Description : Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Last Answer : Answer: Option C

Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Description : Reynolds number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above

Last Answer : Answer: Option B

Mach number is significant in (A) Supersonics, as with projectiles and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through two fluids where there is a surface of discontinuity, gravity force, and wave making effects, as with ship's hulls (D) All of the above

Description : Mach number is significant in (A) Supersonics, as with projectiles and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through ... gravity force, and wave making effects, as with ship's hulls (D) All of the above

Last Answer : Answer: Option A

The bats can fly in the dark because (a) They have a better vision in the dark (b) The light startles them (c) They produce ultrasonics (d) None of the above

Description : The bats can fly in the dark because (a) They have a better vision in the dark (b) The light startles them (c) They produce ultrasonics (d) None of the above

Last Answer : Ans:(c)

What is ultrasonics?

Description : What is ultrasonics?

Last Answer : The branch of science that deals with ultrasound is called ultrasonics.

Microwaves are electromagnetic waves with frequency, in the range of which unit? -Do You Know?

Description : Microwaves are electromagnetic waves with frequency, in the range of which unit? -Do You Know?

Last Answer : Microwaves have frequencies ranging from about 1 billion cycles per second, or 1 gigahertz (GHz), up to about 300 gigahertz and wavelengths of about 30 centimeters (12 inches) to 1 millimeter (0.04 inches),

1. How many orangutans disappear each year as result of palm oil farming? 2. Who decides about the reasonableness of the restrictions placed on Fundamental Rights? 3. Microwaves are electromagnetic waves with frequency, in the range of which unit? 4. Mosses and Lichens are the characteristic vegetation of which region? 5. Who was a great ruler of Kalinga in ancient times?

Description : 1. How many orangutans disappear each year as result of palm oil farming? 2. Who decides about the reasonableness of the restrictions placed on Fundamental Rights? 3. Microwaves are electromagnetic waves with ... 19. Where is Over 90% of the world's biomass? 20. Who deciphered the Brahmi script?

Last Answer : Answer : 1. 5000 2. Courts 3. Giga hertz 4. Tundra region 5. Kharavela 6. MRF 7. Lillehammer 8. Javan rhino 9. Evergreen forests 10. Prakrit 11. Directive Principle 12. An atom 13. Rs. 100 ... 16. Arati Saha 17. A greater flamingo 18. Finance Bills 19. In tropical rain forests 20. James Princep

What is the frequency range of VHF electromagnetic waves?

Description : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

Last Answer : What is the frequency range of VHF electromagnetic waves? A) 30-300 kHz B) 30-3000 kHz C) 30-300 MHz D) 30-3000 MHz

Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency

Last Answer : ANSWER: W -- PROPAGATION VELOCITY

Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called?

Description : Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called?

Last Answer : IR Infra red rays We all almost use An IR remote controller to use operate a TV OR DTH OR any other electronics Gadgets in out home but ever you think how this process works means when you ... then a signal corresponding to pressed key will transmit and carrying a command which hit to the IR Receiv

What are mechanical waves? Give example.

Description : What are mechanical waves? Give example.

Last Answer : The waves which need a material medium for their propagation are called mechanical waves. They can travel only in material medium like water, air and earth. Ex: Sound waves

Do you consider it rude to be greeted with a nod instead of an audible "Hello"?

Description : Do you consider it rude to be greeted with a nod instead of an audible "Hello"?

Last Answer : It’s an acknowledgment even if slightly less gregarious than a verbal “hello.” I think men are more the nodding types, as a female I usually say ” Hello” or smile and say something like ” beautiful day.” Maybe head nodding is part of the strong and silent gig with some men. haha

Visible versus audible, and visual versus ....? what is the word?

Description : Visible versus audible, and visual versus ....? what is the word?

Last Answer : Vocals, audio

What could cause someone's breathing to be more audible than most people's?

Description : What could cause someone's breathing to be more audible than most people's?

Last Answer : It could be an issue with his septum, for example if it's slightly deviated. Or it could be the type of breathing he does. Does he exhale though his mouth? Also if he is a shallow ... he look at some of the breathing techniques used by runners, and encourage him to practice the different methods.

How come dog and cat farts are not audible?

Description : How come dog and cat farts are not audible?

Last Answer : No butt cheeks to vibrate. :)

Did you know wind on Mars is audible? -Do You Know?

Description : Did you know wind on Mars is audible? -Do You Know?

Last Answer : On December 1 the seismometer recorded vibrations: vibrations caused by Martian wind. The wind was blowing across the lander's solar panels, causing small movements. The recording of these vibrations ... of human hearing. The sounds are very low pitch and best heard with headphones and subwoofers

What are the audible words ?

Description : What are the audible words ?

Last Answer : The sound we hear is called audible sound. If the sound vibration is between 20 Hz and 20000 Hz then we hear it. The sound produced within this vibration range is called audible sound.

What is the level of audible sound and audibility ?

Description : What is the level of audible sound and audibility ?

Last Answer : audible sound: The sound we hear is called audible sound. If the sound vibration is between 20 Hz and 20000 Hz then we hear it. The sound produced within this vibration range is called audible sound. ... can hear sounds generated within this range, sounds less than 20 Hz or more than 20000 Hz .

What is an audible word ?

Description : What is an audible word ?

Last Answer : Vibration of an object gives rise to sound. Do we hear the sound of all vibrating objects ? No , we do not hear the sound of all vibrating objects. We humans do not hear the sound that is created with ... in the human ear is 20 to 20,000 Hz . The sound of this frequency is called audible sound.

What are audible words ?

Last Answer : The word that is pleasant to hear is called audible word.

In sea, the call of Humpback Whale is audible upto a distance of

Description : In sea, the call of Humpback Whale is audible upto a distance of

Last Answer : In sea, the call of Humpback Whale is audible upto a distance of A. 20 km B. 200 km C. 400 km D. 800 km

In sea, the call of Humpback Whale is audible upto a distance of

Description : In sea, the call of Humpback Whale is audible upto a distance of

Last Answer : In sea, the call of Humpback Whale is audible upto a distance of A. 20 km B. 200 km C. 400 km D. 800 km

A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an (1) Audible wave (2) Infrasonic wave (3) Ultrasonic wave (4) Microwave

Description : A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an (1) Audible wave (2) Infrasonic wave (3) Ultrasonic wave (4) Microwave

Last Answer : (1) Audible wave

Least audible sound for most of the human ear is – (1) 10.0 μ bar (2) 0.0002 μ bar (3) 0.005 μ bar (4) 5.0 μ bar

Description : Least audible sound for most of the human ear is – (1) 10.0 μ bar (2) 0.0002 μ bar (3) 0.005 μ bar (4) 5.0 μ bar

Last Answer : (2) 0.0002 μ bar Explanation: Least audible sound for most of the human ear is 2 x 10-5 pascal. The generally accepted standard range of audible frequencies is 20 to 20,000 Hz.

The sound produced by a bat is – (1) audible (2) subsonic (3) infrasonic (4) ultrasonic

Description : The sound produced by a bat is – (1) audible (2) subsonic (3) infrasonic (4) ultrasonic

Last Answer : (4) ultrasonic Explanation: Although bats use echolocation to detect their prey, and find their way around in the dark, the sounds which they emit are 'ultrasonic', which is another way of ... (audible) sound based on differences in physical properties, only the fact that humans cannot hear it.

In the illustrated 450 VAC system, what should be provided between the bus and the device labeled 'F'? EL-0003 A. a potential transformer B. a current transformer C. an emergency disconnect device D. an audible alarm and indicating light

Description : In the illustrated 450 VAC system, what should be provided between the bus and the device labeled 'F'? EL-0003 A. a potential transformer B. a current transformer C. an emergency disconnect device D. an audible alarm and indicating light

Last Answer : Answer: A

Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation (B) Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in formation & collapse of vapor cavities (C) Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines resulting in audible noise(D) Large scale cavitation cannot damage pipeline, restrict fluid flow anddamage steam turbine blades

Description : Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation ... (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Last Answer : (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. (A) 105 (B) 135 (C) 160 (D) 185

Description : Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. (A) 105 (B) 135 (C) 160 (D) 185

Last Answer : (B) 135

Are all sounds audible to the human ear? Why?

Description : Are all sounds audible to the human ear? Why?

Last Answer : No. The average human ear cannot hear all sounds in the infrasonic and ultrasonic regions.

What do dolphins, bat and porpoise produce ? a)ultrasound b)infrasound c)both i and ii d)audible sound

Description : What do dolphins, bat and porpoise produce ? a)ultrasound b)infrasound c)both i and ii d)audible sound

Last Answer : a)ultrasound

A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an (1) Audible wave (2) Infrasonic wave (3) Ultrasonic wave (4) Microwave

Description : A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an (1) Audible wave (2) Infrasonic wave (3) Ultrasonic wave (4) Microwave

Last Answer : Audible wave

Least audible sound for most of the human ear is : (1) 10.0 µ bar (2) 0.0002 µ bar (3) 0.005 µ bar (4) 5.0 µ bar

Description : Least audible sound for most of the human ear is : (1) 10.0 µ bar (2) 0.0002 µ bar (3) 0.005 µ bar (4) 5.0 µ bar

Last Answer : 0.0002 µ bar

The sound produced by a bat is– (1) audible (2) subsonic (3) infrasonic (4) ultrasonic

Description : The sound produced by a bat is– (1) audible (2) subsonic (3) infrasonic (4) ultrasonic

Last Answer : ultrasonic