Physics-
General
Easy

Question

The displacement-time graphs for two sound waves A and B are shown in the figure, then the ratio of their intensities I subscript A end subscript divided by I subscript B end subscript is equal to

  1. 1 : 4    
  2. 1 : 16    
  3. 1 : 2    
  4. 1 : 1    

The correct answer is: 1 : 1


    Intensity µa to the power of 2 end exponent omega to the power of 2 end exponent
    here fraction numerator a subscript A end subscript over denominator a subscript B end subscript end fraction equals fraction numerator 2 over denominator 1 end fraction and fraction numerator omega subscript A end subscript over denominator omega subscript B end subscript end fraction equals fraction numerator 1 over denominator 2 end fractionÞ fraction numerator I subscript A end subscript over denominator I subscript B end subscript end fraction equals open parentheses fraction numerator 2 over denominator 1 end fraction close parentheses to the power of 2 end exponent cross times open parentheses fraction numerator 1 over denominator 2 end fraction close parentheses to the power of 2 end exponent equals fraction numerator 1 over denominator 1 end fraction

    Related Questions to study

    General
    Physics-

    Two tuning forks P and Q are vibrated together. The number of beats produced are represented by the straight line OA in the following graph. After loading Q with wax again these are vibrated together and the beats produced are represented by the line OB. If the frequency of P is 341Hz, the frequency of Q will be

    Two tuning forks P and Q are vibrated together. The number of beats produced are represented by the straight line OA in the following graph. After loading Q with wax again these are vibrated together and the beats produced are represented by the line OB. If the frequency of P is 341Hz, the frequency of Q will be

    Physics-General
    General
    Physics-

    If the speed of the wave shown in the figure is 330m/s in the given medium, then the equation of the wave propagating in the positive x-direction will be (all quantities are in M.K.S. units)

    If the speed of the wave shown in the figure is 330m/s in the given medium, then the equation of the wave propagating in the positive x-direction will be (all quantities are in M.K.S. units)

    Physics-General
    General
    Physics-

    Which of the following curves represents correctly the oscillation given by y equals y subscript 0 end subscript sin invisible function application left parenthesis omega t minus phi right parenthesis, where 0 less than phi less than 90

    Which of the following curves represents correctly the oscillation given by y equals y subscript 0 end subscript sin invisible function application left parenthesis omega t minus phi right parenthesis, where 0 less than phi less than 90

    Physics-General
    parallel
    General
    Physics-

    Figure here shows an incident pulse P reflected from a rigid support. Which one of A, B, C, D represents the reflected pulse correctly

    Figure here shows an incident pulse P reflected from a rigid support. Which one of A, B, C, D represents the reflected pulse correctly

    Physics-General
    General
    Physics-

    Fig. below shows the wave y equals A sin invisible function application left parenthesis omega t minus k x right parenthesis at any instant travelling in the +ve x-direction. What is the slope of the curve at B

    Fig. below shows the wave y equals A sin invisible function application left parenthesis omega t minus k x right parenthesis at any instant travelling in the +ve x-direction. What is the slope of the curve at B

    Physics-General
    General
    Physics-

    The figure shows four progressive waves A, B, C, and D with their phases expressed with respect to the wave A. It can be concluded from the figure that

    The figure shows four progressive waves A, B, C, and D with their phases expressed with respect to the wave A. It can be concluded from the figure that

    Physics-General
    parallel
    General
    Physics-

    Two pulses in a stretched string whose centres are initially 8 cm apart are moving towards each other as shown in the figure. The speed of each pulse is 2 cm/s. After 2 seconds, the total energy of the pulses will be

    Two pulses in a stretched string whose centres are initially 8 cm apart are moving towards each other as shown in the figure. The speed of each pulse is 2 cm/s. After 2 seconds, the total energy of the pulses will be

    Physics-General
    General
    Physics-

    The rope shown at an instant is carrying a wave travelling towards right, created by a source vibrating at a frequency n. Consider the following statements

    I) The speed of the wave is 4 n cross times a b
    II) The medium at a will be in the same phase as dafter fraction numerator 4 over denominator 3 n end fraction s
    III) The phase difference between b and e is fraction numerator 3 pi over denominator 2 end fraction
    Which of these statements are correct

    The rope shown at an instant is carrying a wave travelling towards right, created by a source vibrating at a frequency n. Consider the following statements

    I) The speed of the wave is 4 n cross times a b
    II) The medium at a will be in the same phase as dafter fraction numerator 4 over denominator 3 n end fraction s
    III) The phase difference between b and e is fraction numerator 3 pi over denominator 2 end fraction
    Which of these statements are correct

    Physics-General
    General
    Physics-

    Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound changes from a maximum to minimum. If the speed of sound is 350 m/s. Then n is

    Vibrating tuning fork of frequency n is placed near the open end of a long cylindrical tube. The tube has a side opening and is fitted with a movable reflecting piston. As the piston is moved through 8.75 cm, the intensity of sound changes from a maximum to minimum. If the speed of sound is 350 m/s. Then n is

    Physics-General
    parallel
    General
    Physics-

    Two loudspeakers L1 and 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 series of maxima and minima. If the speed of sound is 330 ms1 then the frequency at which the first maximum is observed is

    Two loudspeakers L1 and 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 series of maxima and minima. If the speed of sound is 330 ms1 then the frequency at which the first maximum is observed is

    Physics-General
    General
    Physics-

    A wire of 9.8 cross times 1 0 to the power of negative 3 end exponent k g m to the power of negative 1 end exponent passes over a frictionless light pulley fixed on the top of a frictionless inclined plane which makes an angle of 30° with the horizontal. Masses m and M are tied at the two ends of wire such that m rests on the plane and M hangs freely vertically downwards. The entire system is in equilibrium and a transverse wave propagates along the wire with a velocity of 100 ms–1. Chose the correct option

    A wire of 9.8 cross times 1 0 to the power of negative 3 end exponent k g m to the power of negative 1 end exponent passes over a frictionless light pulley fixed on the top of a frictionless inclined plane which makes an angle of 30° with the horizontal. Masses m and M are tied at the two ends of wire such that m rests on the plane and M hangs freely vertically downwards. The entire system is in equilibrium and a transverse wave propagates along the wire with a velocity of 100 ms–1. Chose the correct option

    Physics-General
    General
    Physics-

    41 forks are so arranged that each produces 5 beats per sec when sounded with its near fork. If the frequency of last fork is double the frequency of first fork, then the frequencies of the first and last fork are respectively

    41 forks are so arranged that each produces 5 beats per sec when sounded with its near fork. If the frequency of last fork is double the frequency of first fork, then the frequencies of the first and last fork are respectively

    Physics-General
    parallel
    General
    Physics-

    Two identical stringed instruments have frequency 100 Hz. If tension in one of them is increased by 4% and they are sounded together then the number of beats in one second is

    Two identical stringed instruments have frequency 100 Hz. If tension in one of them is increased by 4% and they are sounded together then the number of beats in one second is

    Physics-General
    General
    Physics-

    A train has just complicated a U-curve in a track which is a semicircle. The engine is at the forward end of the semi circular part of the track while the last carriage is at the rear end of the semicircular track. The driver blows a whistle of frequency 200 Hz. Velocity of sound is 340 m/sec. Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is 30 m/sec is

    A train has just complicated a U-curve in a track which is a semicircle. The engine is at the forward end of the semi circular part of the track while the last carriage is at the rear end of the semicircular track. The driver blows a whistle of frequency 200 Hz. Velocity of sound is 340 m/sec. Then the apparent frequency as observed by a passenger in the middle of a train when the speed of the train is 30 m/sec is

    Physics-General
    General
    Physics-

    If Error converting from MathML to accessible text. and Error converting from MathML to accessible text. then projection of Error converting from MathML to accessible text. on Error converting from MathML to accessible text. will be

    If Error converting from MathML to accessible text. and Error converting from MathML to accessible text. then projection of Error converting from MathML to accessible text. on Error converting from MathML to accessible text. will be

    Physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.