An approaching train can be felt by applying ears to the rails but through the air its approach cannot be felt easily. Discuss.

Q: When the stem of a vibrating tuning fork is gently pressed on the surface of a table louder sound is…

A: When the stem of the tuning fork is gently pressed against the surface of the table, it is set into…

Q: Why does sound travel slower in cold air than in warm air?

A: velocity of air molecules depend on its temperature,  at higher temperature velocity of air…

Q: When sound passes through a doorway, it spreads out much more on the other side than light would.…

A: We know that the more the wave deflects from objects in the room, the more it will spread in it. we…

Q: Are pitch and frequency the same thing?Are pitch and frequency the same thing?

A: Frequency is defined as the number of cycles per unit time of a physical waveform. But pitch is the…

Q: What happens to the power that is released as sound travels through the air?

A: We need to answer what happens to the power that is released as sound waves travel through the air

Q: The voice of a person who has inhaled helium sounds very high-pitched. Why?

A:

Q: Wet your finger and rub it slowly around the rim of a thinrimmed, stemmed wine glass while you hold…

A: The friction due to the wet finger movement across the rim of the glass produces sound waves.

Q: Sound travels at the fastest speed in: A. steel B. water C. air D. vacuum

A: The speed of sound varies with the medium. The speed of sound is the fastest in solids.

Q: If a source of sound moves toward an observer who is at rest, would the observer hear a higher or…

A: The change in the pitch heard when a vehicle sounding a horn approaches and recedes from an observer…

Q: sound waves cannot travel through O wood Owater a vacuum O steel

A: To determine Correct option for the above question

Q: Suppose that a source of sound moves at right angles to the line of sight of a listener at rest in…

A:

Q: What would be the effect of pressure on the speed of sound and Why?

A: The speed of the sound is

Q: A bat flying in a cave emits a sound and receives its echo 0.1s later.Show that its distance from…

A:

Q: Why does a vibrating guitar string sound louder when placed on the instrument than it would if…

A: When the vibrating string is off the instrument, not much air molecules can be set into vibration.…

Q: Discuss the various modes of vibration of an air column in an open organ pipe.

A: There are two types of open organ pipes, the first is closed at one end and the second is open at…

Q: A ship's temperature heard

A: Given  Temperature of air T=100C Time of echo heard t=6s

Q: Discuss the characteristics of sound

A: The main characteristic of sound is described one by one as follows, 1. Wavelength - The distance…

Q: A bat flying in a cave emits a sound and receives its echo 0.06 s later. Find the distance to the…

A: Given that,speed of sound, v=343 m/secbat flying in a cave emits a sound and receives its echo 0.06…

Q: Sound can be heard for great distance at night or after a rainfall. Why?

A: At night or after a rainfall, the medium becomes more humid, and there are several water droplets…

Q: How many wavelengths will resonate through a tube that is closed at one end?

A: In a tube which is closed at one end, an infinite number of wavelength will resonate, as long as…

Q: Which is normally greater, the energy in ordinary sound or the energy in ordinary light?

A:

Q: A bat flying in a cave emits a sound and receives its echo 0.1 s later. Show that its distance from…

A:

Q: Would the refraction of sound be possible if the speed of sound were unaffected by wind,…

A: Refraction of sound is the bending of sound waves caused by change in the speed of wave.

Q: The bells are made of metals and not of wood, Why?

A: Sonority: It is a property of metal that shows the ability of the metal to produce sounds when…

Q: What happens when two sound waves of equal frequencies and amplitude travelling in the same…

A: The super position wave can occur in any possible way but to determine the result of the…

Q: When two waves interfere does one wave alter the progress of the other?

A: The process of interference results in either addition or subtraction of waves. It cause either…

Q: What travels across the room from a speaker to your ear? The disturbance within the air. O The air…

A: From the phenomenon of sound and waves, we know that the sound cannot travel across an empty space…

Q: Which is louder: a 10 inch speaker with a 0.25 inch excursion or a 5 inch speaker with a 1 inch…

A: The loudness of the speaker depends on the amplitude. The amplitude is the measurement of the…

Q: A scooter waiting on a signal has its mirror vibrating violently. Why?

A: This is because of resonance. When a body is subjected to forced vibration with a frequency which…

Q: Discuss the formation of transverse and longitudinal waves in case of rods.

A: The rod in which this wave formation can be performed is known as singing rods. These rods are made…

Q: What is being transported along a clothsline when a wave moves from one end to the other?

A: The waves produced on a clothesline are standing waves.

Q: Two sound waves of equal frequency travel in opposite directions in a column of air. When they meet,…

A: Given in question - Two sound waves of equal frequency travel in opposite directions. To find - When…

Q: If the frequency of a wave increases, what happens to its wavelength?

A: Introduction: In physics, wave is defined as the propagation of the energy from one place to another…

Q: How does the speed of sound behave in a solid verses a gas?

A: Sound travels at different speeds depending on what it is traveling through. Of the three mediums…

Q: Can the Doppler effect be observed with longitudinal waves, with transverse waves, or with both?

A: Doppler Effect is observed in both longitudinal wave and transverse wave.

Q: When you decrease the frequency of the wave , what happens to its wavelength?

A:

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

A:

Q: Can two people hear each other on Moon?

A: The moon is a natural satellite of the earth which has no atmosphere around it.

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.