Physics question and answers for March 14, 2024
- Q When 1m long metallic wire is stressed an extension of 0 02m is produced An organ pipe 0 5m long and open at both ends whe sounded with this stressed...
- Q In an organ pipe may be closed or open of 99cm length standing wave is set up whose equation is given by longitudinal displacement y K COS 2T 0 1mm...
- Q A stationary source is emitting sound at a fixed frequency f which is reflected by two cars approaching the source The difference between the frequencies of sound reflected from the...
- Q Two point sound sources A and B each to power 25w and frequency 850Hz are 1m apart The sources are in phase 90 M 2 4m AD a Determine the...
- Q A tube open at only one end is cut into two tubes of non equal lengths The piece open at both ends has of fundamenal frequency of 450Hz and other...
- Q A sound wave of frequency 80Hz is travelling with speed 320m s a Find the change in phase at a given position in 400ms b Find the phase difference between...
- Q A person standing on an open ground hears the sound of a jet aeroplane coming from north at an angle 60 with ground level But he finds the aeroplane right...
- Q A closed on one end organ pipe has a fundamental frequency of 528 Hz at 20 C a What is the fundamental frequency when the temperature is 0 C b...
- Q The fundamental frequency in an open organ pipe is equal to the third harmonic of a closed organ pipe If the length of the closed organ pipe is 20 cm...
- Q What will be the velocity of sound if the temperature of air is increased by 1 C Velocity of sound at 0 C is 332 m sec 1 330 m...
- Q EX1 Calculate the attenuation of the sound s intensity of Lair 10 W m when it goes from air into water Lar water Dai 1 29 kg m Pwater 10...
- Q a periodic 2 22 The displacement of a particle in displacement may be considered as the result given by y 4 cos t 2 sin 1000t This superposition of n...
- Q Why answer is given 43 I am getting 46 please help At 20 m from a line source the loudness of the sound is 40 dB At 10 m from...
- Q A train approaching a hill at a speed of 40 km hr sounds a whistle of frequency 580 Hz when it is at a distance of 1 km from hill...
- Q O Five beats are produced by simultaneously blowing two closed organ pipes of different lengths in their fundamental mode If the shorter organ pipe is 25 cm in length and...
- Q range ISR 1 us 100 s RINA RISK Options 1 2 3 A 15 cm 15 m 15 km 150 km
- Q A train is moving at a constant speed of v 90 km h on a straight level track From a railway station P on the track there is a village...
- Q 36 A sound wave of wavelength 40 cm travels in air If the difference between the maximum and minimum pressures at a given point is 1x 10 3 N m2...
- Q Imagine a very thin uniform wire of length L meter and total mass 1 gram Fix one end o f the wire in the ceiling hang a large mass o...
- Q A source is moving a long a circle x y R with constant speed V 330 m s in clockwise direction while an observer is stationary at point 6 3...
- Q Attempt All 35 questions At a place the speed of sound of frequency 400 Hz is V At the same place the speed of 200Hz sound will be 2V OV...
- Q Pressure variation due a sonic wave propagating along positive x direction is given by equation AP x AP sin 2 vt x One end of an open organ pipe is...
- Q An observer moves away from a linear source of sound The loudness level decreases by 10 dB whe the distance of observer from source A Increases 100 times C Decreases...
- Q A closed organ pipe is vibrating in its second overtone The length of the pipe is 10cm and maximum amplitude of vibration of particles of the air in the pipe...
- Q f a source of frequency f and a listener approaches each other with a velocity of of the velocity of sound each the apparent frequency heard by the listener is...
- Q A source of sound with natural frequency moves uniformly along a straight line A stationary sound detector is located at a distance of 300 m from the straight line When...
- Q 25 The speed limit for vehicles on a road is 100 km hr A policeman detects a drop of 20 in the pitch of the horn of a car as...
- Q View In English A car blowing a horn of frequency 350 Hz is moving normally towards a wall with a speed of 5 m s The beat frequency heard by...
- Q at a speec tected by d in air is 330 18 towards a stationary object emits a sound of frequency 1000 Hz Some of the sound reaching the object gets...
- Q 1 In the diagram not to scale each of the loudspeakers 41 frager safe aff Q safa34f emits a continuous sound of the same frequency A microphone moved along the...
- Q fa b c a violin note and sitar note may have the same frequency yet we can distinguish between the two notes d in a sound wave a displacement node...
- Q A train standing in a station yard blows a whistle of frequency 400 Hz in still air The wind starts blowing in the direction from the yard to the station...
- Q ationary sound source The source emits a beep of sound of frequency vo 262 Hz propagates with speed c 330 m s The detector detects the beep of sound over...
- Q SolveLancer Test Sound pollution is dangerous to human health Sound level near an industry increased by 20dB Then find the increment in pressure amplitude SolveLancer Test a 10 b 1000...
- Q Consider a situation i that two sound waves Y 0 2m sin 504 t x 300 and Y2 0 6 m sin 496 t x 300 are super imposed Consider...
- Q PART I PHYSICS An organ pipe open from both end produces 5 beats per second when vibrated with a source of frequency 200 Hz The second harmonic of the same...
- Q A tuning fork is placed near a vibrating stretched wire If frequency of tuning fork is greater than frequency of stretched wire hen a boy standing near the two hears...
- Q 2 21 An engine is approaching a cliff at a constant speed When it is at a distance of 0 9 km from cliff it sounds a whistle The echo...
- Q 24 180 A sound source emitting a sound of frequency 945 Hz is moving away from a man at rest towards a hill at a speed of 54 kmh The...
- Q The frequency of a turning fork A is 2 more than the frequency of a standard turning fork The frequency of another fork B is 3 less than th frequency...
- Q Single Correct A wave of frequency 500 Hz has a velocity of 350 m s The distance between two nearest point on the wave which are 60 out of phase...
- Q A While performing resonance column experiment to measure the speed of sound a student gets the first resonance condition at a column length of 18 cm during winter Repeating the...
- Q A sound wave of wavelength and angular frequency oo travels with a speed v in a medium of density 2n X be the propagation constant If p and A are...
- Q In figure 6 9 a microwave transmitter a height a above the water level of a wide lake transmits microwaves of wavelength towards a receiver on the opposite shore a...
- Q Fill in the blanks for Resonance tube i In resonance tube first resonanting length is 25 cm then its second resonanting length will be if e 0 11 1
- Q 10 A glass tube of 100 cm length is filled with water The water can be drained out slowly at the bottom of the tube If a vibrating tuning fork...
- Q 11 A tuning fork A of frequency 512 Hz produces 5 beats per second when sounded with another tuning fork B of unknown frequency If B is loaded with wax...
- Q 1 L2 driven by a common oscillator and amplifier are arranged as shown The frequency of the oscillator is gradually increased from zero and the detector at D records a...
- Q y 512 H2 sounded en unknown wax the cond The loaded is Pg 384 along a n by x and y paration ADLAL CAMERA L 4 Plucked at and touch...
- Q Five beats are produced by simultaneously blowing two closed organ pipes of different lengths in their fundamental mode If the shorter organ pipe is 25 cm in length and speed...
- Q organ Five beats are produced by simultaneously blowing two clos pipes of different lengths in their fundamental mode If the shorter organ pipe is 25 cm in length and speed...
- Q The relation between first resonance length 1 and second resonance length 12 of closed air column is ay may sila chale 11 auf Options O 1 21 O 1 31...
- Q Aclosed organ pipe of length Lis vibrating in its first overtone There is a point Qinside the pipe at a distance 7 L 9 from the open end The ratio...
- Q Q56 Two radio stations broadcast their programs at the same amplitude A and at slightly different frequen cies w and w2 respectively where wi 10 Hz A detector receives the...
- Q 47 The figure below shows the displacement vs time plot of a particle undergoing simple harmonic motion The acceleration of the particle at time t sec would be A B...
- Q 9 4 YR 5 sin 4rt tan A light string is tied at one end to a fixed support and to a heavy string of equal length L at the...
- Q Two sources of sound placed close to each other are emitting progressive waves given by y 4 sin 600nt and Y 5 sin 608 t An observer located near these...
- Q If we study the vibration of a pipe open at both ends then the following statement is not true NEET 2013 1 Odd Odd harmonics of the fundamental frequency will...
- Q An air column closed at one end and open at the other resonates with a tuning fork when the smallest length of the column is 50 cm The next larger...
- Q A string is stretched between fixed points separated by 75 0 cm It is observed to have resonant frequencies of 420 Hz and 315 Hz There are no other resonant...
- Q 31 In a closed organ pipe of length 105 cm standing waves are set up corresponding to third overtone What distance from the closed end a pressure node is formed...
- Q A tuning fork of frequency 330 Hz resonates with an air column of length 120 cm in a cylindrical tube in the fundamental mode When water is slowly poured in...
- Q iw 996hu 2 18 When a sound source of frequency n is approaching a stationary observer with velocity u than the apparent change in frequency is An and when the...
- Q View in English Question No 41 A racing car moving towards a hill sounds its horn Driver of the car observes that the sound reflected from the hill has a...
- Q 2 Q 16 A long string having a cross sectional area 0 80 mm and density 12 5 g cm is subjected to a tension of 64 N along the...
- Q he correct answer given is option 4th But my answer Please explain the question and provide other solutio en the previous one 21 A person have a whistle emitting continuously...
- Q Which of the following statements are true for a stationary waves A Energy particle has a fixed amplitude which is different from the amplitude of material particle B All the...
- Q A person have a whistle emitting continuously a sound of frequency 660 Hz While producing this sound he is running towards a vertical wall with a speed of 5 m...
- Q At every instant the ratio of the magnitude of the electric field to the magnetic field for an electromagnetic wave in vacuum is equal to Question Type Single Correct Type...
- Q Two strings of the same material and same length are given equal tension If they are vibrating with fundamental fequencies 1600 Hz and 900 Hz then the ratio of their...
- Q A source plays a tone with frequency fo 440 Hz What is the speed in m s of a car moving straight towards the source if the driver hears a...
- Q PIPE TUBE WAVES The fundamental frequency in an open organ pi equal to the third harmonic of a closed organ If the length of the closed organ pipe is 20...
- Q he ratio of intensities between two coherent sound sources is 9 1 If the intensity of louder source is 45 dB then calculate intensity in B at point where both...
- Q Fourty one forks are arranged such that each produces 5 beats per second when sounded with its near fork If frequency of first fork is half of the frequency of...
- Q In a resonance tube experiment the first resonance is obtained for 10 cm of air column and the second resonance is obtained for 32 cm The end correction for this...
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