Related InterviewSolutions

• Two waves of equal amplitude A, and equal frequency travel in the same direction in a medium. The amplitude of the resultant wave is
• Two periodic waves of amplitudes `A_1 and A_2` pass though a region. If `A_1gtA_2`, the difference in the maximum and minimum resultant amplitude possible isA. `2A_1`B. `2A_2`C. `A_1+A_2`D. `A_1-A_2`
• A transverse wave travels along the Z-axis. The particles of the medium must moveA. along the Z-axisB. along the X-axisC. along the Y-axisD. in the XY-plane
• A 660 Hz tuning fork sets up vibration in a string clamped at both ends. The wave speed for a transverse wave on this string is `1220 m s^-1` and the string vibrates in three loops. (a) Find the length of the string. (b) If the maximum amplitude of a particle is 0.5 cm, write a suitable equation describing the motion.
• Figure shows a plot of the transverse displacements of the particles of a string at t = 0 through which a travelling wave is passing in the positive x-direction. The wave speed is `20 cms^-1`. Find (a) the amplitude, (b) the wavelength, (c) the wave number and (d) the frequency of the wave..
• Two waves are smultaneously passing through a string. The equation of the waves are given by `y_1=A_1sink(x-vt)` and `y_2=A_2sink(x=vt+x_0)` where the wave number `k=6.28 cm^-1 and x_0=o1.50c. The ampitudes of `A_1=5.0mm and A_2=4.0mm. find the phase difference between the waves and the amplitude of the resulting wave.
• A pulse travelling on a string is represented by the function y=a^3/((x-vt)^2+a^2)` where a=5 mm and v=20 cms^-1. Sketch the shape of the string at t=0, 1 s and 2s. Take x=0 in the middle of the string.
• A string of length 40 cm and weighing 10 g is attached to a spring at one end and to a fixed wall at the other end. The spring has a spring constant of `160 N m^-1` and is stretched by 1-0 cm. If a wave pulse is produced on the string near the wall, how much time will it take to reach the spring ?
• Figure shows a string stretched by a block going over a pulley. The string vibrates in its tenth harmonic in unison with a particular tuning fork. When a beaker containing water is brought under the block so that the block is completely dipped into the beaker, the string vibrates in its eleventh harmonic. Find the density of the material of the block. .
• A wave pulse is travelling on a string with a speed v towards the positive X-axis. The shape of the string at t = 0 is given by `g(x) = A sin(x /a)`, where A and a are constants. (a) What are the dimensions of A and a ? (b) Write the equation of the wave for a general time 1, if the wave speed is v.