A resonating air column shows resonance with a tuning fork of frequency 256 Hz at column lengths 33.4 cm and 101.8 cm. The speed of sound in air is
In stationary waves, nodes are the points where there is
In an organ pipe of length L open at both ends, the fundamental mode has a frequency (where v is a speed of sound in air)
A tunning fork of frequency 440 Hz resonates wit a tube closed at one end of length 1.8 cm and diameter 5 cm in fundamental mode. The vleocity of sound in air is
A pulse of wave train travels along a stretched string and reaches the fixed end of the string it will be reflectexd back with
The fundamental note produced by a closed organ pipe is of frequncy v. The fundamental note produced by an open organ pipe of same length will be of frequency
Two pipes are each 50 cm in length. One of them is closed at one end while the other is open at both ends. The speed of sound in air is 340 m s‾¹. The frequency at which both the pipes can resonate is
Which of the following phenomenon is used by the musicians to tune their musical instruments?
Two sitar strings A and B are slightly out of tune and produce beats of frequency 5 Hz. When the tension in the stirng B is slightly increased, the beat frequency is found to reduce to 3 Hz. If hte frequency of string A is 427 Hz, the original frequency of string B is
An organ pipe of length K open at both ends is found to vibrate in its first harmonic when sounded with a tuning fork of 480 Hz. What sould be the length of a pipe closed at one end, so that it also vibrates in its first harmonic with the same tuning fork?
A policeman blows a whistle with a frequency of 500 Hz. A car approaches him with a velocity of 15 ms‾¹. The change in frequency as heard by the driver of the car as he passes the policeman is (Given, speed of sound in air is 300 ms‾¹)
An observer moves towards a stationary source of sound with a velocity one-fifth of the velocity of sound. The percentage change in the apparent frequency is
Speed of sound wave in air
Change in temperature of the medium changes
With propagation of longitudinal waves through a medium, the quantity transmitted is.
Which of the following statements is true for wave motion?
A string of mass kg is under a tension of 200 N. the length of the stretched string is 20 .m. if the transverse jerk is struck at one end of the string, the disturbance will reach the other end in.
The equation of a progressive wave is given by y = 5 sin (100πt – 0.4πx) where y and x are in m and t is in s.
(1) The amplitude of the wave is 5 m
(2) The wavelength of the wave is 5 m
(3) The frequency of the wave is 50 GHz.
(4) The velocity of the wave is 250 ms‾¹
Which of the following statements are correct?
P and Q are two wires whose fundamental frequencies are 256 Hz and 382 Hz respectively. How many beats in two seconds will be heard by the third harmonic of A and second harmonic of B?
A wire is stretched between two riigd supports vibrate in its fundamental mode with a frequency of 50 Hz. The mass of the wire is 30 g and its linear density is 4 × 10‾² kg m s‾¹. The speed of the transverse wave at the string is
A guitar string is 90 cm long and has a fundamental frequency of 124 Hz. To produce a fundamnetal frequency, the guitar should be pressed
The transverse displacement of a string clamped at its both ends is given by y(x, t) = 2 sin(2π/3)x cos(100π t)
Where x and y are in cm and t is in s.
Which of the following statements is correct?
A closed organ pipe and an open organ pipe of same length produce 2 beats/second while vibrating in their fundamental modes. The length of the open organ pipe is halved and that of closed pipe is doubled. Then, the number of beats produced per second while vibrating in the fundamental mode is
A simple harmonic progressive wave is represented by the equation y = 8 sin 2π(0.1x – 2t) where x and y are in cm and t is in seconds. At any instant the Phase difference between two particles separated by 2.0 cm in the x-direction is
The frequency of sound wave is n and its velocity is v if the frequency is increased to 4n the velocity of the wave will be
