waves

Related Questions

• A device used for investigating the vibration of a fixed string or wire is

  ---

• An organ pipe open at one end is vibrating in first overtone and is in resonance with another pipe open at both ends and vibrating in third harmonic. The ratio of length of two pipes is

  ---

• A sound source of frequency 170 Hz is placed near a wall. A man walking from a source towards the wall finds that there is a periodic rise and fall of sound intensity. If the speed of sound in air is 340 m/s the distance (in metres) separating the two adjacent positions of minimum intensity is

  ---

• A tuning fork of frequency 392 Hz, resonates with 50 cm length of a string under tension (T). If length of the string is decreased by 2%, keeping the tension constant, the number of beats heard when the string and the tuning fork made to vibrate simultaneously is

  ---

• The frequency of a rod is $200 Hz$. If the velocity of sound in air is $340\,m{{s}^{-1}}$, the wavelength of the sound produced is

  ---