What do you understand by modulation?

Q: Why do the strings used for the lowest-frequency notes on a piano normally have wire wrapped around…

A: The first harmonic of any instrument is the lowest frequency produced by it.  The second harmonic of…

Q: Why amplitude modulation is done?

A: A signal in its current form may not be able to transmit over long distances. The signal may also…

Q: The wavelengths of two sound waves in air 81 m and 173 81 m. They produce 10 beats are 170 second.…

A: Given data-Beat Frequency=10λ1=81173mλ2=81170m

Q: Use the below information to answer Questions 28 – 29. An adjustable tube, open on one end is held…

A: Given : First over tone at length, L1 = 12.6 m Second overtone at length, L2 = 14.1 m

Q: If your microwave oven generates electromagnetic waves with a frequency of 2.5 GHz, what distance…

A: The relation between frequency and wavelength of electromagnetic wave is given by, λ = c/f  Where, λ…

Q: What type of wave can travel through a vacuum? (think about sunlight traveling through space) O…

A:

Q: To hear an echo of your voice, the distance traveled is that of from the source to the reflecting…

A: To hear an echo of your voice, the distance traveled is ____ that of from the source to the…

Q: 12.Why the siren on an ambulance has a high pitch when it is approaching you and a low pitch when it…

A:

Q: How many wavelengths does 1st harmonic / fundamental frequency have?

A: The pattern for the first harmonic will reveal a single antinode in the middle. First harmonic has…

Q: How does changing the amplitude affect the wave pattern? How does changing the frequency affect the…

A: Changing the amplitude will results in change in the displacement of the particles of medium from…

Q: FM is superior to AM because Select the correct response: it eliminates most of amplitude variation…

A: In Frequency modulation (FM) the carrier wave is modulated in frequency by the signal that is to be…

Q: Name three examples of TEM wave

A: TEM mode :- if $\hat{z}-$ direction of propagation then Ez=0;Bz=0 its aTransverse electromagnetic…

Q: Explain what causes the sound of an ambulance siren to change as it comes toward you and passes you…

A: The pitch of the siren of a ambulance appears to change as the ambulance passes us due to the…

Q: State two differences between the natural and forced vibrations.

A: Natural vibrations occur when a mechanical system is set in motion with an initial input and allowed…

Q: If you talk on a telephone and sound waves are produced, are they mechanical waves that are…

A: Mechanical waves  are those waves which need any medium to travel and their velocity depends upon…

Q: 3. When a 400HZ tuning fork is played with a mystery frequency, 7 beats per second are heard. When a…

A: frequency of tuning fork (f) = 400 Hz Let the mystery frequency = F Beat frequency (b) = 7 beats per…

Q: Show how traveling waves become standing waves.

A: When two traveling waves  of same amplitude and frequency travels and moving in opposite directions…

Q: How the ground wave losses vary with high frequencies? Increases Decreases Does not depend on…

A: So, we have to determine the change of ground wave losses with high frequencies.

Q: Why is listening to music with headphones more harmful than listening to monster sound systems even…

A: The electromagnetic waves that the headphones generate result in problems for the brain as well in…

Q: How would I find the beat frequency if there are 11 beats in 3.46 seconds?

A: Given,Number of beats is Time Beat frequency is given by

Q: Explain the term acoustic impedance?

A: The resistance to the propagation of ultrasound waves through tissues is known as acoustic…

Q: Discuss the characteristics of sound

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

Q: Explain Resonance?

A: The resonance is defined in the vibration system. It is the condition that occurs when the frequency…

Q: The wavelengths of two sound waves in air 81 173 per second. Calculate the velocity of sound in 湯 81…

A: The beat frequency f due to superposition of two sound waves with frequencies f1 and f2 is given by…

Q: Explain qualitatively the difference between progressive and stationary waves.

A: The diffrence between Progressive Waves and Stationary waves are given below....

Q: Help me fill out the rest of the table

A: Ohm's Law: Ohm's law states that the voltage across the conductor is directly proportional to the…

Q: 01: Sketch the output of the clamper network with sine waveform. 3.5V -3V

A: In the positive first half of the cycle the the diode is reversed biased, so the first arm…

Q: what is the frequency of the green light that has a wavelength of 522 x 10^-7m?

A: Given wavelength of green light, λ=522×10-7m

Q: 27 : What should be the tension applied to a wire of length 0.8 m and mass 5 gm if it is to vibrate…

A: Here, in this case, we have to find the tension applied (T) to the wire. In this question, we have…

Q: Explain what is Transverse Waves?

A: A travelling wave or pulse that causes the elements of the disturbed medium to move perpendicular to…

Q: We know that sound cannot travel through the vacuum of space and yet astronauts on a space walk can…

A: To Explain How Astronauts able to talk with the help of radios in the space

Q: Question No. 17 A bat in search of prey hears the echo of its squeak after 0.1 s. How far is the…

A: Given : t = 0.1 s v = 340 m/s

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.