Discuss the effect of density , pressure, temperature on the velocity of longitudinal waves in air.

Q: What resonant frequency would you expect from blowing across the top of a soda bottle that is 20 cm…

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Q: Estimate the speed of sound in air at standard temperature and pressure. The mass of 1 mole of air…

A: Density of air at STP is,

Q: Why is the speed of sound in water faster than the speed of sound in air?

A: The sound travel faster when the molecules collides faster. If the distance between the molecules is…

Q: Estimate the speed of sound in air at standard temperature and pressure. The mass of 1 mole of air…

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Q: Consider two sound waves with wavelengths 5m and 6m. If these two waves propagate in a gas with…

A: Number of Beats per second = fb So, fb = |f2 - f1| Where f1 and f2 are the frequency of  two waves.

Q: If frequency of tuning fork is 400 Hz, find how far the sound travels when forks make 30 vibrations?…

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Q: What is percentage increase in the speed of sound when temperature increases from -5 degree C to 32…

A: Given,            Temperature increases from -5 degree C to 32-degree C.

Q: The speed of sound wave in air depends only on

A: Factors affecting speed of sound in air

Q: In a sound wave, a displacement node is a pressure antinode and vice versa, Why?

A: NodeNode is the point where amplitude of oscillation is minimum, i.e. displacement is minimum. We…

Q: Find the temperature at which the speed of sound in air is double its value at 0 degree C.

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Q: Sound travels better in solids than in gases. Why?

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Q: Can transverse waves be produced in air?

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Q: Why does sound travel fastest in solids and slowest in gasses?

A: Speed of sound: The speed of sound is the distance travelled by the sound wave per unit of time.…

Q: Name the factors on which the velocity of transverse waves depend? It

A: Velocity of transverse wave is,

Q: Relative to solids and liquids, how does air rank as a conductor of sound?

A: Sound waves require a material medium for their progression.

Q: Calculate the temperature at which the speed of sound in air is twice its value at 27 degree C.

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Q: When a wave source moves towards a receiver, does the receiver encounter an increase in wave…

A: Write the expression for the Doppler effect when the source is moving towards the stationary object.

Q: A 5E+01 dB sound has an intensity increase over a 20 dB sound by a factor of

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Q: What is the effect of wind on the speed of sound in air?

A: When sound travels in the direction of the wind, its speed is increased. The speed of sound is…

Q: On increasing the temperature, the speed of sound in air: O a. increases O b. does not change O .…

A: The formula for calculating speed of sound in air is v=331m/s+0.6m/sC×T Where T is the temperature

Q: The coldest and hottest temperature ever recorded in the United States are -83 degrees Fahrenheit…

A: Given data The coldest temperature recorded in US is Tc = -83°F = 210 K The hottest temperature…

Q: A sound source and a listener are both at rest on the earth, but a strong wind is blowing from the…

A: The apparent change in the frequency of sound, when there is a relative motion between the observer…

Q: Today we measured the speed of sound to be 344 m/s. What is the temperature in Celsius?

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Q: The coldest and hotest temperatures ever recorded in the United States are -80 degrees F (211K) and…

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Q: What is the difference in the speed between a sound generated at the equator, at a temperature of 45…

A: Te=Temperature at the equator=45°CTn=Temperature at the north pole=0°C

Q: What is the wavelength in water of a compressional wave whose frequency is 400 per second if the…

A: Let the water wave’s speed is denoted by v and the frequency is denoted by f.

Q: A student reading his physics book on a dock notices that the distance between two successive…

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Q: Today we measured the speed of sound to be 336 m/s. What is the temperature in Celsius?

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Q: Why the speed of sound in water is greater than in air?

A: Speed od sound increases if the medium is more denser . Sound waves travel faster in denser…

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

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Q: Standing waves can be said to be due to “interference inspace,” whereas beats can be said to be due…

A: Given: Standing waves can be said to be due to “interference in space,” whereas beats can be said to…

Q: Longitudinal mechanical waves can pass through A. solids. B. liquids. C. gases. D. All of…

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Q: A very noisy chain saw operated by a tree surgeon emits a total acoustic power of 30.0 W uniformly…

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Q: Find the temperature at which sound travels in hydrogen with the same speed as in oxygen at 1000…

A: The speed of the sound is directly proportional to the square root of the temperature.The ratio of…

Q: The speed of sound in an alcohol at a temperature of 20°C is 1260 m/s. The density of the alcohol at…

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Q: What resonant frequency would you expect from blowing across the top of an empty soda bottle that is…

A: Solution: The frequency of a closed tube is given by: f=v4L............................ (i) Here, v…

Q: of this frequency in air at a temperature of 20.0°? x 10

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Q: If the amplitude of a wave is doubled, what will be the effect on the loudness?

A: The loudness of the sound wave is directly proportional to the square of the amplitude.  It is…

Q: Show that the speed of sound in 20.0°C air is 343 m/s, as claimed in the text.

A: The relation between temperature and the speed of sound is given by:v=331×1+T273 °…

Q: calculate the fundamental frequency of the wave in an organ pipe of length 4.00 cm which is closed…

A: The speed of sound is given as The fundamental frequency for an organ pipe with one closed pipe

Q: The speed of sound in air, at temperature (273k)is

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Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.