Description : Standing waves are formed when two sets of waves of equal amplitude and frequency w) are in phase x) are in opposite phase y) move through each other in opposite directions z) are reflected from the same surface
Last Answer : ANSWER: Y -- MOVE THROUGH EACH OTHER IN OPPOSITE DIRECTIONS
Description : The waves in which particles vibrate along the direction of the propagation are called
Last Answer : longitudinal waves.
Description : The waves in which particles vibrate in the direction perpendicular to the direction of wave propagation are called
Last Answer : transverse waves.
Description : What is the amplitude of a standing wave at its node?
Last Answer : ANSWER: 0
Description : In a Laser (say neon laser) all the atoms emit the light waves of – (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above
Last Answer : (4) All of the above Explanation: In a Laser all the atoms emit the light waves of same frequency, amplitude and phase. A laser is a device that emits light (electromagnetic radiation) ... photons. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation.
Description : Two sources of light are said to be coherent if __________. A. they produce waves of the same wave length B. they have the same amplitude of vibration C. they produce waves in the medium simultaneously D. they produce waves of the same amplitude
Last Answer : D. they produce waves of the same amplitude
Description : In a Laser (say neon laser) all the atoms emit the light waves of (1) Same frequency (2) Same amplitude (3) Same phase (4) All of the above
Last Answer : All of the above
Description : An instrument has two strings. Both have the same length and are uniform. One of the strings is under twice as much tension as the other and also twice the mass of the other. Then which of ... d) Both strings vibrate with the same frequency and have the same wave-length and the same wave velocity.
Last Answer : Ans:(d)
Description : The principal of mode vibration can be given by A) Two masses vibrate at Different frequency and in same phase B) Two masses vibrate at Different frequency and in Different phase C) Two masses vibrate at same frequency and in Different phase D) Two masses vibrate at same frequency and in same phase
Last Answer : D) Two masses vibrate at same frequency and in same phase
Description : When two masses vibrate at the same frequency and in phase, it is called a principal mode of vibration A. True B. False C. Does not depend on vibration D. None of the above
Last Answer : A. True
Description : When heavy rotating masses are connected by a shaft and equal and opposite torques are applied to these masses (rotors) A. The rotors vibrate torsionally in the same direction. B. The rotors vibrate torsionally ... on the axis of shaft which remains undisturbed by vibration. D. Both (B) and (C)
Last Answer : D. Both (B) and (C)
Description : By which Radio waves of constant amplitude can be generated? -General Knowledge
Last Answer : The answer is 'Oscillator'
Description : What does it mean when sound waves have a large amplitude?
Last Answer : Feel Free to Answer
Description : How is a wave's amplitude related to the amount of energy the wave carries?
Last Answer : There is a direct correlation between the amplitude of a wave and its energy. The greater the amplitude, the more energy it carries compared to the same wave of lower amplitude.
Description : What is it called when the crests of two waves overlap and result in increased wave amplitude?
Last Answer : kkkk
Description : Echo sounding is the technique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : (1) measure the depth of the sea Explanation: Echo sounding is the technique of using sound pulses to find the depth of water. The interval from the emission of a pulse to reception ... information is then typically used for navigation purposes or in order to obtain depths for charting purposes.
Description : Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjacent nodes is : (1) 1.0 (2) 1.2 (3) 1.5 (4) 2.0
Last Answer : (1) 1.0 Explanation: Since the amplitudes, frequency and the speed of both the waves are in same, hence the wavelength of the composite wave will be the same as the single wave.
Description : Three audio waves with 100,200 and 300 volts amplitude respectively, simultaneously modulate a 450 volts carrier. What is the total percent of modulation of the AM wave? A. 69 % B. 115.5 % C. 50% D. 83%
Last Answer : D. 83%
Description : By which Radio waves of constant amplitude can be generated?
Last Answer : Oscillator
Description : In the formation of stationary waves, at T⁄2 the waves are A. out of phase B. in phase C. diminished D. twice the amplitude
Last Answer : . in phase
Description : .As a wave travels down a spring, the amplitude slowly decreases. Why does this occur? A. The law of conservation of energy does not apply to waves. B. The energy is spread out along the entire ... due to friction as the particles in the spring rub against each other. E. all of the above
Last Answer : D. Some energy is lost due to friction as the particles in the spring rub against each other.
Description : The physical quantity, which oscillates in most waves, is (i) mass (ii) energy (iii) Amplitude* (iv) wavelength
Last Answer : iii) Amplitude*
Description : If viewed on an oscilloscope, the loudness of a sound wave would be associated with the wave's: w) frequency x) wavelength y) velocity z) amplitude
Last Answer : ANSWER: Z -- AMPLITUDE
Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency
Last Answer : ANSWER: W -- PROPAGATION VELOCITY
Description : In case of earthquakes, an increase of magnitude 1 on Richter Scale implies (A) a ten-fold increase in the amplitude of seismic waves. (B) a ten-fold increase in the energy of the seismic waves. ... in the amplitude of seismic waves. (D) two-fold increase in the energy of seismic waves.
Last Answer : (A) a ten-fold increase in the amplitude of seismic waves.
Last Answer : 2mm
Description : Echo sounding is the tech-nique applied to— (1) measure the depth of the sea (2) measure the amplitude of sound waves (3) record earthquake waves (4) record the density of air in the atmosphere
Last Answer : measure the depth of the sea
Description : What do you mean by standing or stationary waves?
Last Answer : A standing wave is a wave produced by interference between twomoving waves of the same frequency (usually an original wave andits reflection) which does not move but continues to oscillate atthe original frequency.
Description : The presence of standing waves on a transmission line is the result of A. a high level of attenuation on the line. B. terminating the line by a resistive load equal in value to the surge impedance ... input power to below its critical level. D. an impedance mismatch between the load and the line.
Last Answer : D. an impedance mismatch between the load and the line.
Description : What do you call the energy that was not radiated into space or completely transmitted? A. Incident waves B. Captured waves C. Standing waves D. Modulated waves
Last Answer : C. Standing waves
Description : Energy that has neither been radiated into space nor completely transmitted. A. Captured waves B. Incident waves C. Standing waves D. Modulated waves
Description : Stationary waves are also called A. static waves B. standing waves C. progressive waves D. All of the above
Last Answer : standing waves
Description : Standing waves occurs due to a) Impedance match b) Impedance mismatch c) Reflection d) Transmission
Last Answer : b) Impedance mismatch
Description : . A non-resonant line is a line that has no standing waves of current and voltage on it and is considered to be flat. Why is this true?
Last Answer : The load impedance of such a line is equal to Z0.
Description : At what frequency compared to the cutoff frequency of a waveguide will the wavefronts be reflected back and forth across the guide (setting up standing waves) and no energy
Last Answer : UHF receiving antenna
Description : With what a met phenomenon is wind shear most associated? a. Thunderstorms b. Passage of a warm front c. Tropical revolving storms d. Standing mountain waves
Last Answer : a. Thunderstorms
Description : Define VSWR with refernce to standing waves.
Last Answer : Voltage Standing Wave Ratio: The voltage standing wave ratio (VSWR) is the ratio of max voltage to min voltage. VSWR= VMAX /VMIN
Description : Draw waveform for standing waves on an open and shorted line. Prove that impedance is inverted at every quarter wavelength interval.
Last Answer : Waveform- Explanation When the transmission line is short circuited voltage is zero and current is maximum.The variation is according to the wavelength. When the ... The pattern repeats for every half wavelength. Thus impedance is inverted at every quarter wavelength interval.
Description : Explain standing waves with load terminal open circuited and short circuited.
Last Answer : Standing waves with load terminal open circuited Standing waves: The forward and reflected waves on the incorrectly terminated transmission line produce an interference pattern known as Standing ... , the load impedance will not be equal to the transmission line (characteristic)impedence.
Description : Do you know of a exercise heart rate monitor that will beep or vibrate when my heart rate exceeds a certain level?
Last Answer : Garmin has the vivosmart HR/HR+ watch that supposedly has those functions. I have no experience with it. From experience I can say the Garmin Forerunner 235 does not work well.
Description : Do quantum strings vibrate in one direction?
Last Answer : String theory has been left to the annuls of ‘things that didn’t pan out’ in quantum theory.
Description : Why won't my cell phone vibrate when I get texts?
Last Answer : Update: it’s not just texts. Calls as well.
Description : Why won't my iPhone vibrate?
Last Answer : When you put your phone on ‘silent’, doesn’t that mean it won’t ring or vibrate?
Description : Are cactus plants supposed to wiggle and vibrate all by themselves?
Last Answer : Need more information.
Description : How to make the vibration for message alert vibrate more on Nokia N97?
Last Answer : If no1 helped there , chances are no1 will help here . Thats not cause they don’t want to help , but maybe due to what you want isn’t something thats available. Best bet would be email nokia
Description : How do I put vibrate as a alert for the message alert on Nokia N97?
Last Answer : http://www.n97geeks.com/Forums/
Description : Why does my walking stick vibrate and hum?
Last Answer : Is it really for walking?
Description : I have a motorola krazer. How do I setup the phone to vibrate only. When someone calls in, the phone vibrates but then rings if I don't answer it. Also rings when a voicemail is left. How do I change the setting?
Last Answer : Without looking at a Motorola Phone in my hand, I can't recall the exact menu-steps to configure the settings; however, if the krazer is the same as past Motorola phones produced, you simply have to ... click the Volume Down button on the side of the handset until it's comlpetely off and on vibrate.
Description : Any suggestions for a phone that won't vibrate?
Last Answer : Good luck, have the same phone 2 years old and vibrate mode works just fine. Must be a short in the wiring somewhere.
Description : The frequency of a source of sound is 200 hz.How many Times does it vibrate in 2 min? -Physics
Last Answer : Hence, the source vibrates 12000 times in a minute, producing a frequency of 00 Hz.