The Velocity Of Sound Is The Greatest Is

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The velocity of sound is the greatest is


Correct option is


The velocity of sound is the greatest in Steel.



A toothed wheel is rotated at 120 r.p.m. A post card is placed against the teeth. How many teeth must the wheel have to produce a note whose pitch is the same as that of a tuning fork of frequency 256 Hz?


If a spring extend by x on loading, then the energy stored in the spring is (T is the tension in the spring and k its force constant)


A pulse travels along a stretched string and reaches the fixed end of the string. It will be reflected back with


At which temperature will the velocity of sound at 27oC become double?



The equation of a travelling wave is


Where y is the microns, t in seconds and x in metres. The ratio of the maximum particle velocity and velocity of the wave is


Due to Doppler effect, the shift in the wavelength observed is 0.1 Å, for a star producing a wavelength 6000 Å. The velocity of recession of the star will be  


A particle, with restoring force proportional to displacement and damping force proportional to velocity is subjected to a force F sin ωt. If the amplitude of the particle is maximum at ω = ω1 and its energy is maximum at ω = ω2, then (ω0 is the angular frequency of natural oscillations of the particle)


A vehicle with a horn of frequency n is moving with a velocity of 30 ms–1in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency (n + n1). If the sound velocity in air is 300 ms–1 


Two springs of constants k1 and k2 have equal highest velocities while executing S.H.M. If their masses are equal, the ratio of their amplitudes will be


The speed of a wave in a medium is 960 m/s. If 3600 waves are passing through a point in the medium in  minute, then calculate the wavelength.