A teacher stands well back from an outside doorway0.88 m wide, and blows a whistle of frequency 950 Hz.Ignoring reflections, estimate at what angle(s) it is notpossible to hear the whistle clearly on the playground outsidethe doorway. Assume 340 m/s for the speed of sound.

A teacher stands well back from an outside doorway0.88 m wide, and blows a whistle of frequency 950 Hz.Ignoring reflections, estimate at what angle(s) it is notpossible to hear the whistle clearly on the playground outsidethe doorway. Assume 340 m/s for the speed of sound.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Wave Optics

Section: Chapter Questions

Problem 19P

See similar textbooks

Related questions

Q: Unpolarized light passes through two polaroid filters that are oriented such that the angle between…

A: Given: The angle between the polarization axes is,

Q: Consider a thin film of thickness t = 2.30 × 10-6 m and index of refraction ng = 1.20. The film is…

A: From the question, it is given that- Thickness of thin film: t = 2.30×10-6 m Refractive index of…

Q: The transmitting antenna on a submarine is 5.00 m above the water when the ship surfaces. The…

Q: Microwaves of wavelength 5.00 cm enter a long, narrow window in a building that is otherwise…

A: The condition for destructive interference is

Q: What is the wavelength of light falling on double slitsseparated by 2.00 μm if the third-order…

A: Given : distance between the slits, d = 2.00 μm = 2.00 × 10-6 m Angle between maximum…

Q: What wavelength of light will have a first order maximum at an angle of 13.5o when viewed through a…

Q: Calculate the minimum thickness needed for an antirefle ive coating (n = 1.38) applied to a glass…

A: Given:- n = 1.38 a) Blue ( 450 nm ) b) Red ( 720 nm ) The reflection of light at the normal…

Q: A lens appears greenish yellow ( is strongest)when white light reflects from it. What minimum…

A: Given: The refractive index of the coating is 1.25. The refractive index of the glass is 1.52.…

Q: A thin layer of liquid methylene iodide (n = 1.756) is sandwiched between two flat, parallel plates…

Q: With two slits spaced d=0.2mm apart, and a screen at a distance of l=1m, the third bright fringe…

Q: Find the wavelength of light that has its third minimum atan angle of 48.6º when it falls on a…

A: The expression for destructive interference for a single slit is,

Q: A parallel beam of light containing orange (610 nm) and violet (410 nm) wavelengths goes from fused…

A: The formula of Snell’s law is, n1sinθ1=n2sinθ2 The angle at which the orange light emerges is,…

Q: If you look at something 40 m from you, what is the smallest length (perpendicular to your line of…

Q: What is the spacing between structures in a feather that acts as a reflection grating, given that…

A: Given information: The wavelength of the incident light, λ=525 nm=525×10-9 m The angle of the…

Q: Analysis of an interference effect in a clear solid shows thatthe wavelength of light in the solid…

Q: You are at a large outdoor concert, seated 300 m from the speaker system. The concert is also being…

A: vsound = 340 m/svradio = 3 × 108 m/sxyou = 300 mxlistener = 5000 km = 5000 × 103 mtyou = ?tlistener…

Q: An anti-glare coating is applied to minimize reflection of a certain wavelength from the glass of a…

A: The phenomenon of destructive interference occurs in an anti-glare coating system. Accordingly, the…

Q: The transmitting antenna on a submarine is 5.00 m above the water when the ship surfaces. The…

A: The following figure shows the transmission of the signal.

Q: ction a single-slit be 1.40 mm from the m) of the incident light?

A: GivenThe position of second order dark fringe from center of central maximum, yy=1.40 mm=1.4×10-3…

Q: What is the wavelength of light falling on double slits separated by 2.00 µm if the second-order…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: When looking at green dots (A = 520 nm) on a page held 6.0 m away, what is the smallest separation…

Q: Light of wavelength l is used in a Michelson interferometer.Let x be the position of the movable…

Q: In the figure, an isotropic point source of light S is positioned at distance d from a viewing…

A: The expression to determine the intensity,

Q: The angle between the axes of two polarizing filters is 45.0o. By how much does the second filter…

A: The light’s intensity that falls on a polarizer can be found as, Here, I0, I, and θ is the…

Q: hin glass of refractive index nG = 1.50 onto a boundary with water of refactive index nW = 1.33.…

A: We know that snell's law is given as n1sinθ1= n2sinθ2 where n1 and n2 are the refractive indexes…

Q: Red light of 600nm wavelength is used to produce double-slits are separated by 1.6mm, and if they…

A: We have a red light of wavelength λ=600 nm=600*10-9m going through a double slit producing fringes…

Q: Single-colour light falling on two slits 0.042 mm apart produces the fifth-order fringe at a 3.8°…

A: We need to find wavelength of light . For which we need to use diffraction condition and on putting…

Q: The angle between the axes of two polarizing filters is 45.0º . By how much does the second filter…

A: Angle between two filters, A = 45 degree

Q: certain reddish light has a wavelength of 700nm in air. What's the wavelength in water where light…

Q: In the double-slit experiment, suppose the electric fields of the two waves arriving at apoint P on…

Q: A soap bubble is 115 nm thick and illuminated by white light incident perpendicular to its surface.…

Q: In a Michelson interferometer is set for the white straight fringes. When a mica sheet of thickness…

Q: A disabled tanker leaks kerosene (n-1.20) into the Persian Gulf, creating a large slick on top of…

A: Givenrefrative index of kerosen nk = 1.2refractive index of water nw = 1.33thick ness of kerosen…

Q: Two coherent EM waves have amplitudes of E0 and 0.770 E0. What is the resulting amplitude when they…

A: Given that- Two coherent EM waves have amplitudes of E0 and 0.770 E0 To determine that- What is the…

Q: A light beam traveling in air with a wavelenght of 600 nm enters a glass block. If the index of…

A: wavelength λ in a medium of refractive index n =λ0nwhere λ0 is the wavelength of that light in…

Q: Reflections from a thin layer of air between two glass plates cause constructive interference for a…

A: For constructive and destructive interference,

Q: a difraction is getting illumnated by monochormatic light of wavelength 660nm what is the number of…

A: Wavelength of the light =660 nm =660×10^-7 cm No of maxima =2

Q: Which of the following conditions must the light satisfy to obtain an observable double-slit…

A: When the waves move together, they construct destructively or constructively to produce a clear and…

Q: In the figure, assume two waves of light in air, of wavelength 407 nm, are initially in phase. One…

Q: A bubble of soap when exposed to light, a strong reflection in the first order, with a wavelength of…

A: We have a light of wavelength λ=700 nm=700×10-9m that is incident vertically (θ=0o) on a bubble of…

Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

A teacher stands well back from an outside doorway
0.88 m wide, and blows a whistle of frequency 950 Hz.
Ignoring reflections, estimate at what angle(s) it is not
possible to hear the whistle clearly on the playground outside
the doorway. Assume 340 m/s for the speed of sound.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

What is the necessary condition on the path length difference between two waves that interfere (a) constructively and (b) destructively?
An aircraft maintenance technician walks past a tall hangardoor that acts like a single slit for sound entering the hangar.Outside the door, on a line perpendicular to the opening in thedoor, a jet engine makes a 600-Hz sound. At what angle withthe door will the technician observe the first minimum insound intensity if the vertical opening is 0.800 m wide and thespeed of sound is 340 m/s?
Two out of phase loudspeakers are some distance apart. A person stands 5.40 m from one speaker and 3.20 m fromthe other. What is the second lowest frequency at which constructive interference will occur? The speed of sound in air is346 m/s.
Public television station KQEDin San Francisco broadcasts a sinusoidal radio signal at a power of777 kW. Assume that the wave spreads out uniformly into a hemisphereabove the ground. At a home 5.00 km away from the antenna,what average pressure does this wave exert on a totally reflecting surface
Two waves travelling in the same direction are given by: y1 = 0.2 sin(2rx-20t+p) and y2 = 0.2 sin(2Ttx-20t), where x and y are in meters and t is in seconds. If the %3D two waves start at the same moment, then the path difference, Ax, corresponding to a fully destructive interference is:
Public television station KQEDin San Francisco broadcasts a sinusoidal radio signal at a power of777 kW. Assume that the wave spreads out uniformly into a hemisphereabove the ground. At a home 5.00 km away from the antenna, what is the average density of the energy this wave carries?
Two radio antennas separated by d = 272 m as shown in the figure below simultaneously broadcast identical signals at the same wavelength. A car travels due north along a straight line at position x = 1150 m from the center point between the antennas, and its radio receives the signals. Note: Do not use the small-angle approximation in this problem. d (a) If the car is at the position of the second maximum after that at point O when it has traveled a distance y = 400 m northward, what is the wavelength of the signals? m (b) How much farther must the car travel from this position to encounter the next minimum in reception? m
The shortest distance between a sound source (S,) and a reflecting wall is 25 m. The sound is reflected at an angle of a, = 45° to a listener (L,). (a) What is the shortest distance between the sound source and the listener, (x1)? (b) The sound is also reflected to another listener (L2) at an angle of a2= 80°. What is the length of the reflector between the two reflection points, (x2)? X2 = ? Reflector a2 a1 L2 L1 S1 X1 = ?
A red light of wavelength 6400 A in air has wavelength 4000 A in glass. If the wavelength of violet light in air is 4400 find its wavelength in glass. 4, (Assume that µ. H)
A loudspeaker with a diaphragm that vibrates at 960 Hz is traveling at 80.0 m/s directly toward a pair of holes in a very large wall. The speed of sound in the region is 344 m/s. Far from the wall, you observe that the sound coming through the openings first cancels at ±11.4° with respect to the direction in which the speaker is moving. (a) How far apart are the two openings? (b) At what angles would the sound first cancel if the source stopped moving?
In the figure, a point source Sof sound waves lies near a reflecting wall AB. A sound detector D intercepts sound ray R, traveling directly from S. It also intercepts sound ray R, that reflects from the wall such that the angle of incidence 0, is equal to the angle of reflection 62. Assume that the reflection of sound by the wall causes a phase shift of 0.500A. If the distances in the figure are d= 2.20 m, d2 = 20.9 m, and d3 = 11.9 m, what are the (a) lowest and (b) second lowest frequency at which R, and R2 are in phase at D? Take the speed of sound to be 343 m/s. S. R2 R Units (a) Number Units (b) Number
Ex54 Wavelength of two sound waves in air 80 80 m und 175 173 m. Between these waves 8 173 are beats per second are produced. Calculate the velocity of sound in air.