science
Grade-4-
Easy

Question

In the given diagram, how many full waves have been shown?

  1. 2.5
  2. 2
  3. 3
  4. 3.5

hintHint:

Wave wavelength is defined as the length of a complete wave cycle.

The correct answer is: 2.5


    • The wavelength of a wave is called the length of one complete wave cycle.
    • Therefore, one wavelength is defined as one cycle of a wave.
    • In the given diagram, there are 2 full waves and 1 half wave, a total of 2.5 waves are given.
    • So, the correct option is a.

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