posted by .

"Vibrators A and B are sources of waves with different wavelengths and they are placed close to one another in a ripple tank. Waves from source A have a wavelength of 8.0cm while those from B have a wavelength of 10cm. The waves start out in phase with each other. For each distance below, state whether the waves will experience constructive or destructive interference.
a) 20cm from both sources
b) 40cm from both sources
c) 80cm from A and 70cm from B
d) 40cm from A and 75cm from B"

I know what constructive and destructive interference are, but I don't know what to do in order to solve this question.

  • Physics -

    Calculate the number of waves between source and receiver for each case.

    For case b), you are 5 wavelengths from A ande 4 wavelengths from B.

    That would be a constructive interference situation.

    Do the others similarly.

  • Physics -

    Thank you so much!

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. susane

    I have a question concerning waves. What effect does increasing the tension in a vibrating string have upon wavelength?
  2. physics - SHM

    Two sinusoidal waves with identical wavelengths and amplitudes travel in opposite directions along a string with a speed of 11 cm/s. If the time interval between instants when the string is flat is 0.33 s, what is the wavelength of …
  3. Physics

    "Point S1 and S2 are close sources of circular water waves each of wavelength 6.0cm. P is a point some distance away from the sources. Explain whether the following path differences (path difference = PS2 - PS1) result in nodes or …
  4. physics

    Two point sources, 5.0 cm apart are operating in phase, with a common frequency of 6.0 Hz, in a ripple tank. A metre stick is placed above the water, parallel to the line joining the sources. The first nodal lines (the ones adjacent …
  5. physics

    Which of the following conditions is not necessary to observe an interference pattern between two sets of waves?
  6. PHISIC help

    water waves in a ripple tank are diffracted by a narrow aperture.if the wavelength of the water waves is decreased slightly whilst keeping the aperture size the same ,which one of the following will happen?
  7. physics

    In a double-slit experiment, two beams of coherent light traveling different paths arrive on a screen some distance away. What is the path difference between the two waves corresponding to the third bright band out from the central …
  8. Physical Science

    QUESTION---Which waves have wavelengths longer than those of visible light?
  9. Physics

    Two point sources emit sound waves of 1 m wavelength. The sources are pointed at each other. The sources, 2 m apart, emit waves which are in phase with each other at the instant of emission. a) Where, along the line between the sources …
  10. Science

    1. What is the main difference between mechanical and electromagnetic waves?

More Similar Questions