Physics
Grade-7
Easy

Question

Repeated periodic disturbances create:

  1. A wave
  2. A periodic wave
  3. Ripples
  4. Both a and c

hintHint:

A periodic wave

The correct answer is: A periodic wave


    A periodic wave is one that repeats as a function of both time and position and can be described by its amplitude, frequency, wavelength, speed, and energy.
    A periodic wave is an energy-carrying periodic disturbance that spreads out from a source. Mechanical and electromagnetic waves are the two forms of waves. Mechanical. Sound waves, water waves, and so forth are examples. Transfer requires a medium; cannot be conveyed through a vacuum.

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