A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string
Sahay Sir > Question Answers > A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string
One mole of a compound AB reacts with 1 mole of a compound CD according to the equation When equilibrium had been established it was found that 3/4 mole each of reactant AB and CD has been converted to AD and CB. There is no change in volume. The equilibrium constant for the reaction is
16
Nov
One mole of a compound AB reacts with 1 mole of a compound CD according to the equation When equilibrium had been established it was found that 3/4 mole each of reactant AB and CD has been converted to AD and CB. There is no change in volume. The equilibrium constant for the reaction is [...]
40 ml of 0.1 M ammonia is mixed with 20 ml of 0.1M HCI. What is the pH of the mixture ? (pKb of ammonia solution is 4.74.)
16
Nov
40 ml of 0.1 M ammonia is mixed with 20 ml of 0.1M HCI. What is the pH of the mixture ? (pKb of ammonia solution is 4.74.) A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is [...]
A SONAR system fixed in a submarine operates at a frequency 40.0kHz. An enemy submarine moves towards the SONAR with a speed of 360 kmh^−1. What is the frequency of sound reflected by the submarine ? Take the speed of sound in water to be 1450 ms^−1.
13
Nov
A SONAR system fixed in a submarine operates at a frequency 40.0kHz. An enemy submarine moves towards the SONAR with a speed of 360 kmh^−1. What is the frequency of sound reflected by the submarine ? Take the speed of sound in water to be 1450 ms^−1. A string of mass 2.50 kg is under [...]
One end of a long string of linear mass density 8.0 ×10^−3 kg/m is connected to an electrically driven tuning fork of frequency 256 Hz. The other end passes over a pulley and is tied to a pan containing a mass of 90 kg. The pulley end absorbs all the incoming energy so that reflected waves at this end have negligible amplitude. At t = 0, the left end (fork end) of the string x = 0 has zero transverse displacement (y = 0) and is moving along positive y-direction. The amplitude of the wave is 5.0 cm. Write down the transverse displacement y as function of x and t that describes the wave on the string :
13
Nov
One end of a long string of linear mass density 8.0 ×10^−3 kg/m is connected to an electrically driven tuning fork of frequency 256 Hz. The other end passes over a pulley and is tied to a pan containing a mass of 90 kg. The pulley end absorbs all the incoming energy so that reflected [...]
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 with a speed of 10 m/s . What are the frequency, wavelength, and speed of sound for an observer standing on the station’s platform ? Is the situation exactly identical to the case when the air is still and the observer runs towards the yard at a speed of 10 m/s ? The speed of sound in still air can be taken as 340 m/s
13
Nov
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 with a speed of 10 m/s . What are the frequency, wavelength, and speed of sound for an observer standing on the station’s platform ? [...]
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A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string ,
A train ,
blows a whistle of frequency 400 Hz in still air. The wind starts blowing in the direction from the yard to the station with a speed of 10 m/s . What are the frequency ,
how long does he disturbance take to reach the other end ? ,
standing in a station yard ,
wavelength ,
A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10 m/s (b) recedes from the platform with a speed of 10 m/s ? (ii) what is the speed of sound in each case? The speed of sound in still air can be taken as 340 m/s
13
Nov
A train standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10 m/s (b) recedes from the platform with a speed of [...]
A pipe 20 cm long is closed at one end. Which harmonic mode of the pipe is resonantly excited by a 430 Hz source ? Will the same source be in resonance with the pipe if both ends are open ? (speed of sound in air is 340 m/s)
13
Nov
A pipe 20 cm long is closed at one end. Which harmonic mode of the pipe is resonantly excited by a 430 Hz source ? Will the same source be in resonance with the pipe if both ends are open ? (speed of sound in air is 340 m/s) A string of mass 2.50 kg [...]
A metre-long tube open at one end, with a movable piston at the other end, shows resonance with a fixed frequency source (a tuning fork of frequency 340 Hz ) when the tube length is 25.5 cm or 79.3 cm. Estimate the speed of sound in air at the temperature of the experiment. The edge effect may be neglected.
13
Nov
A metre-long tube open at one end, with a movable piston at the other end, shows resonance with a fixed frequency source (a tuning fork of frequency 340 Hz ) when the tube length is 25.5 cm or 79.3 cm. Estimate the speed of sound in air at the temperature of the experiment. The edge [...]
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A metre-long tube open at one end ,
A string of mass 2.50 kg is under a tension of 200 N. The length of the stretched string is 20.0 m. If the transverse jerk is struck at one end of the string ,
how long does he disturbance take to reach the other end ? ,
with a movable piston at the other end ,
A wire stretched between two rigid supports vibrates in its fundamental mode with a frequency of 45Hz. The mass of the wire is 3.5×10^−2 kg and its linear mass density is 4×10^−2 kg/m . What is the speed of transverse wave on string and the tension in the string ?
13
Nov
A wire stretched between two rigid supports vibrates in its fundamental mode with a frequency of 45Hz. The mass of the wire is 3.5×10^−2 kg and its linear mass density is 4×10^−2 kg/m . What is the speed of transverse wave on string and the tension in the string ? A string of mass 2.50 [...]
Given below are some functions of x and t to represent the displacement (transverse or longitudinal ) of an elastic wave. State which of these represent (i) a travelling wave (ii) a stationary wave or (iii) none at all ?
13
Nov
Given below are some functions of x and t to represent the displacement (transverse or longitudinal ) of an elastic wave. State which of these represent (i) a travelling wave (ii) a stationary wave or (iii) none at all ? A string of mass 2.50 kg is under a tension of 200 N. The length [...]