Sound waves travel fastest in
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- 1View SolutionWhich of the following equations represents a wave
- 2A source of sound of frequency $90$ vibrations/ sec is approaching a stationary observer with a speed equal to $1/10$ the speed of sound. What will be the frequency heard by the observer .... $vibrations/sec$View Solution
- 3A pipe $30 cm$ long is open at both ends. Which harmonic mode of the pipe is resonantly excited by a $1.1 kHz$ source ? (Take speed of sound in air =$ 330 ms^{-1}$)View Solution
- 4A pipe of length $1.5\ m$ closed at one end is filled with gas and resonates in its fundamental mode with a tuning fork. Another open organ pipe of same dimensions filled with air resonates in its fundamental mode with same tuning fork. If experiment is performed at $30\,^oC$ (speed of sound in air is $360\ m/sec$ at $30\,^oC$), the speed of sound at $0\,^oC$ in gas is ...... $m/sec$ (Neglect end correction)View Solution
- 5If two waves having amplitudes $2A$ and $A$ and same frequency and velocity, propagate in the same direction in the same phase, the resulting amplitude will beView Solution
- 6The vibrations of four air columns under identical conditions are represented in the figure below. The ratio of frequencies $n_p: n_q: n_r: n_s$ will beView Solution
- 7On producing the waves of frequency $1000 Hz$ in a Kundt's tube, the total distance between $6$ successive nodes is $ 85 cm.$ Speed of sound in the gas filled in the tube is ..... $m/s$View Solution
- 8The frequency changes by $10\%$ as a sound source approaches a stationary observer with constant speed $v_s$. What would be the percentage change in frequency as the source recedes the observer with the same speed. ... $\%$ Given that $v_s < v$. ($v =$ speed of sound in air)View Solution
- 9The transverse displacement $y(x, t)$ of a wave on a string is given by $y(x, t)=e^{-\left(a x^2+b t^2+2 \sqrt{a b} x t\right)}$ This represents aView Solution
- 10A pipe’s lower end is immersed in water such that the length of air column from the top open end has a certain length $25\,\, cm$. The speed of sound in air is $350 \,\,m/s$. The air column is found to resonate with a tuning fork of frequency $1750 \,\,Hz$. By what minimum distance should the pipe be raised in order to make the air column resonate again with the same tuning fork ... $cm$ ?View Solution