waves

Related Questions

• Which two of the given transverse waves will give stationary waves when get superimposed<br> ${{z}_{1}}=a\cos (kx-\omega \,t)$.....(A)<br> ${{z}_{2}}=a\cos (kx+\omega \,t)$ .....(B)<br> ${{z}_{3}}=a\cos (ky-\omega \,t)$ .....(C)

  ---

• If the tension of sonometer’s wire increases four times then the fundamental frequency of the wire will increase by

  ---

• Which one of the following does not represent a travelling wave

  ---

• A tuning fork of known frequency 256 Hz makes 5 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per second when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was

  ---

• Two sinusoidal waves with same wavelengths and amplitudes travel in opposite directions along a string with a speed 10 m/s. If the minimum time interval between two instants when the string is flat is 0.5 s, the wavelength of the waves is

  ---