A fish finder uses a sonar device that sends 20,000-Hzsound pulses downward from the bottom of the boat, andthen detects echoes. If the maximum depth for which it isdesigned to work is 85 m, what is the minimum time betweenpulses (in fresh water)?

Q: An open organ pipe has fundamental frequency 200 Hz. What frequencies will be produced if its other…

A: An open organ pipe having fundamental frequency, f = 200 Hz

Q: The equation f y (x, t) = where x andy Determine a certuin fraveling wave is 0.0450sin…

A:

Q: with the appropriate calculation, show that an inverse square decrease in intensity is equivalent to…

A: Sound level in decibels:

Q: Suppose a dolphin sends out a series of clicks that are reflected back from the bottom of the ocean…

A: Given:Distance covered by the sound to reach the bottom of the sea (d) = 55 mSpeed of sound in…

Q: A baby’s mouth is 30 cm from her father’s ear and 1.50 mfrom her mother’s ear. What is the…

A: Let r1 be the the distance between the baby's mouth and mother's ear while r2 be the distance…

Q: When poked by a spear, an operatic soprano lets out a 1083 Hz shriek. What is its wavelength (in m)…

A: Given that  f=1083 Hz speed of sound (v)=345 m/s  wavelength (λ)=?

Q: If a large housefly 2.9 m away from you makes a noise of 36.0 dB, what is the noise level (in dB) of…

A:

Q: What is the SPL 50 meters from a 10 W monopole source emitting a continuous 2 kHz tone in seawater…

A:

Q: Ethan was driving, moving at 14.0 m/s, approaching the open window of Khuslen who was experimenting…

A:

Q: A sound wave travelling in a dense medium has a frequency of 20 KHz and a wavelength of 40 cm. What…

A: Write the expression for the speed of the waveform. Here, n represents the frequency and λ…

Q: The lowest frequency a certain sound receiver can detect is 760 Hz. If the receiver detects a…

A: The given data are: Δf=4 Hzf=762 Hz Here, Δf denotes the beats per second and f denotes the…

Q: An 6 hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in…

A:

Q: If a large housefly 3.0 m away from you makes a noise of 40.0 dB, what is the noise level of 1000…

A: To get effective power level in dB of n sound sources with each having a power level of Li dB we…

Q: An echo is heard in 3 s. What is the distance of the reflecting surface from the source, given that…

A: Given : Speed of sound (v) = 342 ms-1 Echo returns in time (t) = 3 s

Q: An exact and more accurate for Skin depth is S- 12 Lommunicate with In order to HoWor Submerged…

A: Re-arranging the given expression, δ=2μ0ωσω=2μ0σδ22πf=2μ0σδ2f=1πμ0σδ2

Q: transducer cmits dia gnastie Ultrasaund uHrasound to A a tissue laver and recie ved the e echo aft…

A: Given-  Time , T = 1.30×10-6 sec. Speed , v = 1540 m/s  Using formula -  Distance = Speed × time

Q: A 60-dB sound is reaching he eardrum with on area of 70 mm?. Find the energy received by ke eardrum…

A: Given that:- Loudness of sound=60dB

Q: ue is soundec =y of 2 Hz is he ed (decreasing

A:

Q: A hiker is at the bottom of a canyon facing the canyon wall closest to her. She is 280.5 m from the…

A: Given Data: The distance between a girl and the wall is, d=280.5 m The speed of her voice travels at…

Q: the huge volcanic eruption on the island of Krakatoa, Indonesia, in 1883 was heard on Rodrigues…

A: Time taken

Q: = 24.9968708262...,...or 25 decibels. Considering that prolonged exposure to sounds above 85…

A: Decibel rating for .22 rimfire rifle ,dB = 10logII0 = 10log(2.5×1013I0I0)=133.98 decibels

Q: A 1.2m long rod is fixed at midpoint and free at both ends. If produces a 2nd overtone of frequency…

A: Given data: Length of the rod l =1.2 m Frequency ν=6000Hz

Q: Loud speech, measured at 3 meters away, has a sound intensity level LI of 73dB. Find the…

A: Sound loudness level (β) = 73 dB distance (d) = 3 m

Q: A boyts playing a drum on a tain t oving of 2omk, e ound frequenci is 80 Hz and another por son is…

A:

Q: You shout the word hellointo an idealized echo tube. Five seconds later, the helloreturns to your…

A: Given Speed of sound = 340 m/s Time taken by the echo to return = 5 sec.

Q: Prove that the distance between two successive small ends of a standing wave in a lossless…

A:

Q: asPraw the autput waveform fer the given ciroutt u the input is sinuscidal. Vin Vs

A:

Q: An FM communication system has a sensitivity of 4 kHz/V. How much deviation (in Hz) does it produce…

A:

Q: A man fires a gun and hears an echo 2.4 seconds after. How far is the reflecting surface if air…

A:

Q: In the Vibrating Strings experiment, you measure  L = 87.5 cm  when  n = 3.  Given that  f = 120…

A: Answer             70 m/s

Q: A Seund wave travels of a speed of 422 m[s. If ite in the frequency warelength is 31 cm-what 18 of…

A: Wavelength × frequency = speed Here,  Wavelength =3.1cm  = 3.1×10^-2 m Speed = 422 m/s

Q: Two identical speakers are 3.50 m and 5.20 m from a listener. What is the lowest frequency (n = 0)…

A:

Q: ssible for a sound wave to have a sound level of

A: A sound is a vibration that propagates through a medium in the form of a mechanical wave. The medium…

Q: Sound travels at 1540 40 m/s in body tissue. If an ultrasound device sends out a frequenc of 16 MHz…

A: The speed of sound in body tissue: v = 1540 m/s (in the question, it is mentioned "1540 40 m/s", it…

Q: The harmonic SPerical wave is. given by the fallowing equation Y (rit) A iK (r wt) wherein the…

A:

Q: The record for the world’s loudest burp is 109.9 dB, measured at a distance of 2.5 m from the…

A: Given data: Sound intensity level, β=109.9 dB Distance, r=2.5 m Known data: Threshold intensity of…

Q: The power output of a certain public address speaker is 8.8 W. Suppose it broadcasts equally in all…

A:

Q: Whay is the wavelength of a 256 hertz sound wave in air at STP?

A: Let the speed of sound wave at STP is v and the given frequency is f, then

Q: An 6 hour exposure to a sound intensity level of 95.0 dB may cause hearing damage. What energy in…

A:

Q: fravels at spred of 400 m/s If its wervelengih is :2.8 cm. ware Sound wave what ie-the frequency of…

A: Given data :      Wavelength  =  λ      Speed of sound  =  v        To find :      Frequency

Q: In what part of the frequency spectra would expect to find the minimum noise from the atmosphere and…

A: The solar spectra has a 1/f noise pattern.

Q: Find the Doppler frequency of the reflected wave by the cloud moving 14m/s in the direction of the…

A: Speed of radio waves = 3×108 msSpeed of aircraft (v') = 250 kmhrSpeed of cloud (v'') = 14…

Q: Suppose a Speaker is at (0, 2.4)m. An Identical opeaker, Connected to Hhe same amplifier is at…

A: Location of first speaker = (0,2.4 ) m Location of second speaker = (6.4,0) m Let point P lies on…

Electromagnetic Waves

Electromagnetic waves are waves that consist of magnetic field and electric field components perpendicular to each other. These field components are also perpendicular to the direction of propagation of the wave.