TS EAPCET (Engineering) Superposition of Waves — practice questions
75 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAPCET (Engineering) Superposition of Waves in the app →Two equal-amplitude waves meet with a phase difference of pi radian. The resultant amplitude is:Waves of amplitudes 3 cm and 5 cm interfere. What is the ratio Imax : Imin?Two waves of amplitudes 4 mm and 3 mm meet exactly out of phase. The resultant amplitude is:The intensity of a wave is directly proportional to its:A compression travelling from a rarer to a denser medium is reflected as a:Active noise cancellation headphones work by adding a wave called:Which type of mechanical wave can travel through a fluid?A mechanical wave travelling through a medium transfers:Which kind of wave does not need a material medium to propagate?A wave is written y = A sin(kx - wt). Its wave number k equals:For y = A sin(kx - wt), the speed of the wave is given by:The wave y = A sin(kx + wt) travels:A stationary wave is produced by superposing two identical waves that travel:In a stationary wave, points that do not move at all are called:The distance between two consecutive nodes of a stationary wave is:A stationary wave on a string has frequency 64 Hz and wave speed 48 m/s. Successive nodes are how far apart?A stationary wave has wavelength 2 m. A node and the nearest antinode are separated by:Particles at the antinodes of a stationary wave vibrate with:In a stationary wave the amplitude of vibration:A pure stationary wave transports energy:Particles in adjacent loops of a stationary wave differ in phase by:The frequency at which a body vibrates when disturbed and left alone is its:In free vibrations of a body, after the initial displacement:At the closed end of an air column there is:The end correction at an open end of a pipe of inner diameter d is about:A pipe has an inner diameter of 5 cm. Its end correction at one open end is:For a pipe open at both ends, the corrected length of the air column L is:The fundamental mode of a pipe closed at one end has a wavelength equal to:The wavelength of the fundamental mode of an open pipe of air column length L is:Which harmonics are present in the sound of a pipe open at both ends?A closed pipe is 0.85 m long. With v = 340 m/s (ignore end correction), its fundamental frequency is:A closed pipe has fundamental frequency 100 Hz. Its next higher mode has frequency:Per the law of length, a string's fundamental frequency is inversely proportional to its:The fundamental frequency of a vibrating string is directly proportional to the:A string's fundamental frequency varies with its mass per unit length m as:The tension in a stretched wire is made four times. Its fundamental frequency becomes:The vibrating length of a sonometer wire is halved at constant tension. Its frequency:A wire 0.5 m long fixed at both ends carries waves at 225 m/s. Its fundamental frequency is:For a string fixed at both ends, the ratio of first to second harmonic frequency is:A string fixed at both ends gives frequencies n, 2n, 3n and so on. Its harmonics present are:What is the role of the hollow wooden box in a sonometer?In a sonometer, the light rider on the wire falls off when the wire vibrates:The periodic variation of sound intensity caused by two waves of slightly different frequency is called:Beats are produced when two sound waves have:The beat frequency of two tones of frequencies n1 and n2 equals:In the study of beats, the instants of maximum intensity are called:One beat consists of:Musicians tune two instruments until the beat frequency becomes:In a seiche, a standing wave appears in:Two opposite waves of unequal amplitude meet. At the nodes the amplitude is:A laser cavity uses standing waves formed between:The faintest sound a human can hear has a pressure variation of about:Which set lists the three characteristics of sound?Stringed instruments like the violin and tanpura work on the principle of:A stationary wave on a string is y = 2a cos(kx) sin(wt). All particles pass their mean positions:Who first described standing waves scientifically, in 1831, on a vibrating liquid surface?Which scientist coined the term standing wave around 1860 using vibrating strings?In a standing wave on a long string, what is the spacing between two consecutive nodes?Two identical waves of amplitude A travel in opposite directions. What is the amplitude at an antinode?A string is fixed at both ends and carries the n = 1 standing wave. Its wavelength equalsA string fixed at both ends vibrates in its third harmonic. How many antinodes does it have?A 1.2 m string fixed at both ends vibrates in its fundamental mode. What is the wavelength?A string fixed at both ends has fundamental frequency 150 Hz. What is its third harmonic frequency?On a string of infinite length, standing waves can form at which frequencies?At the free end of a vibrating string, which feature forms?What mainly causes standing waves inside a musical instrument body or resonator?What do we call the patterns of nodal lines on a vibrating drumhead?What quantity measures how closely a transmission line wave resembles a pure standing wave?A standing wave is best described as a wave whose peak amplitude profileA beat in acoustics is caused by the interference of two sounds that haveA tuner hears beats slow down as two strings are tuned. What is happening to their pitches?Which principle explains that two sounds sounding together simply add their amplitudes?Beats are perceived as a periodic variation in which property of the sound?Who first described the frequency change of waves for a moving source, in 1842?Which scientist speculated since 1968 about an inverse Doppler effect?