Physics question and answers for March 11, 2024
- Q Two tuning forks have frequencies 520 Hz a 524 Hz respectively On sounding these for together the time interval between two successi maximum intensity is 1 2 1 2 S...
- Q agation is 2 cm s The wavelengths of 60 cm and 61 cm produce 9 beats second The velocity of sound approximately 1 330 m s 3 340 m s...
- Q 1 The third overtone of an open organ pipe is in resonance with the second overtone of a closed organ pipe If the length of the open pipe is 8...
- Q The maximum possible sound level in dB of sound wave in air will be nearly density of air 1 3 kg m speed of sound 390 m s and atmospheric...
- Q D A pipe closed at one end and open at the other end resonates with sound waves of frequency 135 Hz and also 165 Hz but not with any wave...
- Q the length of tube Given below are some functions of x and t to represent the displacement transverse or longitudinal of a I elastic wave State which of these represent...
- Q 34 In a long cy adjusted and the air column above it is made to vibrate in unison with a vibrating tuning fork kept at the open end Maximum sound...
- Q Example 2 The equation of a sound wave in air is given by p 0 01 N m sin 1000 s t 3 0 m x a Find the frequency...
- Q In an experiment sonometer wire vibrates in 4 loops when a 50 g weight is placed in the pan of weight 15 g To make the wire vibrates in 6...
- Q 4 1454 Hz If we study the vibration of a pipe open at both ends then the following statement is not true NEET 2013 1 Odd harmonics of the fundamental...
- Q The sound level of a dog s bark is 50 dB The intensity of a rock concert is 10 000 times that of dog s bark What is the sound...
- Q Problem 10 A bus is moving with a velocity of 5 m s towards a huge wall The driver sounds a horn of frequency 165 Hz If the speed of...
- Q 2 y sin 10 x 20nt 3 y sin 2x 2 t 4 y sin x 2t Dis aus 20 Two sources of sound placed close to each other are...
- Q Problem 3 Plane simple harmonic progressive waves of wavelengths 120 cm and speed 34800 cm sec are incident normally on a plane surface which is a perfect reflector of sound...
- Q Problem 13 A vehicle with a horn of frequency n is moving with a velocity of 30 m s in a direction perpendicular to the straight line joining the observer...
- Q Problem 8 A source of sound of frequency 256 Hz is moving towards a wall with a velocity of 5 m s The velocity of sound is 330 m s...
- Q Problem 2 In a gas two waves of wavelengths 1m and 1 01 m are superposed and produce 10 beats in 3 seconds The velocity of sound in the medium...
- Q Two sources of sound are separated by a distance 4 m They both emit sound with the same amplitude and frequency 330 Hz but they are 180 out of phase...
- Q S S are two coherent sources of sound along x axis separated by 42 where is wavelength of sound emitted by them Number of maximum located on the elliptical boundary...
- Q NEET AIIMS 18 A policeman on duty detects a drop of 10 in the pitch of the horn of motion of car as it crosses him If the velocity of...
- Q The maximum no of possible interference maxima for slit seperation equal to twice the wavelength in Young s double slit expt is a infinite b five c three d zero
- Q 34 Find the acceleration of the blocks A and B in the three situations shown in figure 5 E17 B 35 kg a 4 kg A 2 kg B b...
- Q moisture in hydrogen gas increases at a given temperature 1 Increase the speed of sound in the gas will OL asiged 2 Decrease 3 Remain the same B Any of...
- Q A source of sound emitting a note of frequency 200 Hz moves towards an observer with a velocity v equal to the velocity of sound If the observer also moves...
- Q Example 17 45 i An engine approaches a hill with a constant speed When it is at a distance of 0 8 km it blows a whistle whose echo is...
- Q Which of the following statements is incorrect 1 In solids longitudinal waves travel faster than transverse waves 2 Reverberation time in an auditorium increases if the volume of enclosure increases...
- Q In resonance tube first resonanting length is 25 cm then its second resonanting length will be if e 0
- Q 9 Each of the two strings of length 51 6 cm and 49 1 cm are tensioned separately by 20 N force Mass per unit length of both the strings...
- Q C bauce lo Hand A standing wave is created on a string of length 120 m and it is vibrating in 6th harmonic Maximum amplitude of any particle is 10...
- Q 18 A policeman on duty detects a drop of 10 in the pitch of the horn of motion of car as it crosses him velocity of sound is 330 m...
- Q A source of sound is moving towards a high wa with a speed 20 m s The frequency of the soun produced by the source is 400 Hz If the...
- Q RACE 03 a stationary wave the amplitude corresponding to antinode is 4 cm then the amplitude corresponding to a particle of medium located exactly midway between a node and an...
- Q 28 96 A sound source is moving with speed 5 m s towards a wall If the velocity of sound is 330 m s the tationary observer would hear beats...
- Q X 2 There are three sources of sound of equal intensity with frequency 200 Hz 201 Hz and 202 Hz respectively if all sounded simultaneously then beat frequency heard by...
- Q A train whistling at constant frequency is moving towards a station at a constant speed The train goes past a stationary observer on the station The variation of frequency fof...
- Q 6 15 pts a Two loudspeakers located along the x axis as shown in the figure produce sounds of equal frequency Speaker 1 is at the erorigin while the location...
- Q 4 A tuning fork with frequency 800 Hz produces resonance in a resonance column tube with upper end open and lower end closed by water surface Successive resonance are observed...
- Q Four runing forks of frequencies 200 201 204 and 206 Hz are sounded together The beat frequency will be 1 6 3 15 2 12 nozog 4 None of these
- Q A bat moving at 10 ms 1 towards a wall sends a sound signal of 8000 Hz towards it On reflection it hears a sound of frequency f The value...
- Q 3 In a closed organ pipe the first resonance occurs at 25 cm at what length of pipe the second resonance will occur 1 75 cm 3 75 cm 2...
- Q The frequency of a radar is 780 MHz The frequency of the reflected wave from ar aeroplane is increased by 2 6 KHz The velocity of air plane is 1...
- Q While traveling down the road at 55 mph you pass a fire station where the siren is blowing Which of the following observations is attributable to the Doppler Effect Select...
- Q piano string is 1 4 m long and has a mass of 6 3 grams How much tension must be applied on the string if it is to vibrate at...
- Q Question 7 10 Points A 7 4 m long string has a mass of 2 29g What is the mass in kg of an object hung from its end if...
- Q 6 An object weighing 16 pounds stretches a spring 2 feet The subsequent motion takes place in a medium that offers a damping force numerically equal to 4 times the...
- Q For a certain transverse wave the distance between two successive crests is 1 41 m and 8 crests pass a given point along the direction of travel every 11 4...
- Q The sitar an Indian musical instrument has a set of strings that vibrate and produce music even though they are never touched by the player These sympathetic strings are identical...
- Q A string of length 1 m has a fundamental node frequency of 5 Hz If this string is plucked transversely and is the touched a point in the centre what...
- Q 16 Identify the following key characteristics of sound intensity how sound intensity is measured intensity level of sound intensity that damages human hearing above to dB level of the faintest...
- Q What is the wavelength of a radar signal that has a frequency of 36 GHz The speed of light is 3 x 10 m s Answer in units of m...
- Q TOO C A trombone player stands at the end zone x 0 of a football field and begins to play its fundamental tone Assume the trombone is a half open...
- Q A musical instrument produces a frequency of 1183 7 when it vibrates in the fifth harmonic The fundamental frequency of this instrument is
- Q Using the wave graphs provided answer the following a Which wave pattern corresponds with a low pitch quiet sound b Which wave pattern would be produced by a loud high...
- Q Anna was on vacation and came across an echo lake Wanting to know how far she had to swim to get across the lake to the other side she yelled...
- Q Given a beat frequency 8 Hz and a tuning fork of 256 Hz what is the frequency of a second tuning fork that has a lower pitch
- Q A bat flying in a cave emits a sound reflecting off a wall 850 m away How much time until she hears the echo Assume the spe of sound in...
- Q 1 Explain the difference between the way sound waves behave and the way light waves behave 2 A small child pokes a paintbrush into her ear and tears her eardrum...
- Q If a guitar string has a fundamental frequency of 250 Hz what is the frequency of its third harmonic Select one O a 250 Hz O b Any of the...
- Q A sound wave traveling at 342 m s is emit ted by the foghorn of a tugboat An echo is heard 2 40 s later How far away is the...
- Q Assume that the speed of a sound wave produced by an elephant at 20 C is 344 m s and its frequency is 1 3579 x 105 Hz What is...
- Q The fire alarm goes off and you hear a very high pitched extremely loud sound How would you describe the characteristics of the fire alarm s sound wave a A...
- Q During a single period the distance traveled by a wave is Select one O a one wavelength O b two wavelengths O c one half wavelength
- Q The main factor that affects the speed of a sound wave is the Select one O a amplitude of the sound wave O b pitch of the sound properties of...
- Q If a person yells as opposed to whispering then it will cause Select one O a the pitch of the sound to be higher O b the speed of the...
- Q 1 The string of a piano that produces the note middle C vibrates with a frequency of 264 Hz If the sound waves produced by this string have a wavelength...
- Q Use Mersenne s law to answer the following question A certain stretched string has a fundamental frequency of 246 Hz What is the new frequency if the linear mass density...
- Q A siren in the middle of town warns of an approaching tornado while in the car different from what a person would hear standing right next to the siren The...
- Q A child sitting at the end of a dock notices that 8 wavelengths pass by in 4 seconds What is the frequency of the waves passing the dock 0000 4...
- Q What is the speed of sound in a stretched string of length 1 4 m and second harmonic vibrating at 414 Hz It is known that v Af Answer in...
- Q Which sound will most likely have the highest pitch O a bass drum 150 Hz O a distant thunder 90 Hz O a tuba 60 Hz O a whistle 1000...
- Q Look at the diagram Which point identifies a node O A OB O C O D A C B D
- Q Look at the two wave diagrams Which best describes the differenc between wave A and wave B Wave A Wave B Time wwwwwwww www Time Air Pressure Air Pressure O...
- Q What is the Standard International unit for intensity O decibel O O Joule meter Watt
- Q Which best describes pitch O the amount of time taken for a longitudinal wave to produce one cycl O the number of cycles per second perceived by the human ear...
- Q Which best describes loudness O the subjective measurement of the intensity of sound O the subjective measurement of the wavelength of a sound wav O an inherent measurement of the...
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