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qUESTIONS

The fundamental frequency of a wire stretched by 2 kg wt is 100 Hz. The weight required to produce its octave is

Two waves y1 = 0.35 sin (ω1 t) and y2 = 0.35 sin (ω2 t) are propagating along the same direction. The number of beats produced per seconds are

In a medium, the phase difference between two particles separated by a distance ‘x’ is (π/5)^c. If the frequency of the oscillation of particles is 25 Hz and the velocity of propagation of the wave is 75 m/s, then the value of x is

A pipe open at both ends and a pipe closed at one end have same length. The ratio of frequencies of air columns in their Pth overtone respectively is

A metal string of length ‘L’ and diameter ‘d’ is vibrating with the fundamental frequency ‘n’ when tension ‘T’ is applied to it. Keeping the tension same, the length and diameter of the string are doubled. The frequency of vibration will be

Two open organ pipes of fundamental frequencies n1 and n2, are joined in series. The fundamental frequency of the new pipe is

When tension ‘T’ is applied to a sonometer wire of length ‘l’ it vibrates with the fundamental frequency ‘n’. Keeping the setup same, when the tension is increased by 8 N, the fundamental frequency becomes three times the earlier. The initial tension applied to the wire was:

The displacement of a wave travelling in the x direction y=10^-4 (sin 600t-2x+π/3) , where x is in metre and t in second. The speed of the wave is

A pipe Pc closed at one end and pipe Po open at both ends are vibrating in second overtone. They are in resonance with a given tuning fork. The ratio of the length of pipe Pc to that of pipe Po is: (Neglect end correction)

Stationary waves of frequency 300 Hz are formed in a medium in which the velocity of sound is 1200 m/s. The distance between a node and the neighboring antinode is

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