The figure below illustrates part of the displacement-time graph of a wave travelling across water at a particular place with a velocity of 2 ms^-1....

The figure below illustrates part of the displacement-time graph of a wave travelling across water at a particular place with a velocity of 2 ms^-1. Calculate the wave’s; (a) Amplitude (b) Frequency (f) (c) Wavelength

---

a) From the graph, maximum displacement (a) = 0.4 cm

b) From the graph, period T = time for one cycle = 0.20 seconds So f = 1 / T = 1 / 0.20 = 5 Hz.

c) Velocity = frequency x wavelength hence wavelength = 2 / 5 = 0.4 m.

---

Mutiso answered the question on October 12, 2018 at 11:32

Exams With Marking Schemes

• Grade 1
• Grade 2
• Grade 3
• Grade 4
• Grade 5
• Grade 6
• Grade 7
• Grade 8
• Grade 9
• PP1
• PP2
• Playgroup
• Form 1
• Form 2
• Form 3
• Form 4

Related Questions

---

• A rope is displaced at a frequency of 3 Hz. If the distance between two successive crests of the wave train is 0.8 m, calculate... (Solved)
  

  A rope is displaced at a frequency of 3 Hz. If the distance between two successive crests of the wave train is 0.8 m, calculate the speed of the waves along the rope.

  Date posted: October 12, 2018 .    Answers (1)

• Outline the characteristics of waves (Solved)
  

  Outline the characteristics of waves

  Date posted: October 12, 2018 .    Answers (1)

• Define transverse and longitudinal pulses and waves giving suitable illustrations (Solved)
  

  Define transverse and longitudinal pulses and waves giving suitable illustrations.

  Date posted: October 12, 2018 .    Answers (1)

• Two identical springs, whose spring constant is 6.0 N/cm, are used to support a load of 60 N as shown below. Determine the extension of... (Solved)
  

  Two identical springs, whose spring constant is 6.0 N/cm, are used to support a load of 60 N as shown below. Determine the extension of each spring.
  

  Date posted: October 12, 2018 .    Answers (1)

• A body of 200 g was hung from the lower end of a spring which obeys Hooke’s law. Given that the spring extended by... (Solved)
  

  A body of 200 g was hung from the lower end of a spring which obeys Hooke’s law. Given that the spring extended by 100 mm, what is the spring constant for this spring?

  Date posted: October 12, 2018 .    Answers (1)

• A load of 4 N causes a certain copper wire to extend by 1.0 mm. Find the load that will cause a 3.2 mm extension... (Solved)
  

  A load of 4 N causes a certain copper wire to extend by 1.0 mm. Find the load that will cause a 3.2 mm extension on the same wire. (Assume Hooke’s law is obeyed).

  Date posted: October 12, 2018 .    Answers (1)

• If the springs shown below are similar and the constant of proportionality (k) is 100 Nm^-1, determine total extension in each arrangement. (Solved)
  

  If the springs shown below are similar and the constant of proportionality (k) is 100 Nm^-1, determine total extension in each arrangement.
  

  Date posted: October 12, 2018 .    Answers (1)

• Applications of the force on a conductor (Solved)
  

  Applications of the force on a current carrying conductor.

  Date posted: October 12, 2018 .    Answers (1)

• State the factors affecting the magnitude of the force on a current carrying conductor (Solved)
  

  State the factors affecting the magnitude of the force on a current carrying conductor

  Date posted: October 12, 2018 .    Answers (1)

• What is an electromagnet? (Solved)
  

  What is an electromagnet?

  Date posted: October 12, 2018 .    Answers (1)

• Magnetic field due to solenoid (Solved)
  

  Magnetic field due to solenoid

  Date posted: October 12, 2018 .    Answers (1)

• Rules for determining the direction of the lines of force (Solved)
  

  Rules for determining the direction of the lines of force.

  Date posted: October 12, 2018 .    Answers (1)

• A vertical object 5 cm high is placed 10 cm in front of a convex mirror of focal length 15 cm. find the position, size... (Solved)
  

  A vertical object 5 cm high is placed 10 cm in front of a convex mirror of focal length 15 cm. find the position, size and nature of image formed. Determine the magnification of the image.

  Date posted: October 12, 2018 .    Answers (1)

• Determine the size, position and nature of the image of an object 5.0 cm tall, placed on the principal axis of a concave mirror of... (Solved)
  

  Determine the size, position and nature of the image of an object 5.0 cm tall, placed on the principal axis of a concave mirror of focal length 15 cm, at a distance 35 cm from the mirror.

  Date posted: October 12, 2018 .    Answers (1)

• State the applications of curved reflectors (Solved)
  

  State the applications of curved reflectors

  Date posted: October 12, 2018 .    Answers (1)

• Location of images using ray diagrams (Solved)
  

  Location of images using ray diagrams.

  Date posted: October 12, 2018 .    Answers (1)

• What are parabolic mirrors? (Solved)
  

  What are parabolic mirrors?

  Date posted: October 12, 2018 .    Answers (1)

• Name the parts of a spherical mirror (Solved)
  

  Name the parts of a spherical mirror.

  Date posted: October 12, 2018 .    Answers (1)

• Illustrate concave and convex mirrors with aid of diagrams (Solved)
  

  Illustrate concave and convex mirrors with aid of diagrams

  Date posted: October 12, 2018 .    Answers (1)

• Explain three states of equilibrium with aid of diagrams (Solved)
  

  Explain three states of equilibrium with aid of diagrams.

  Date posted: October 12, 2018 .    Answers (1)