Answer to Question #177616 in Physics for Aldo

Question

Draw a light with 2 full wavelengths. Label the amplitude, crest, trough, and one wavelength.

Answer 1

Explanation

• Refer to the sketch attached.

• Amplitude is the distance of maximum deflection of a point on the wave from the equilibrium level (shown by the dashed line)
• Crest is the point of maximum upward deflection.
• Trough is the point of maximum downward deflection.
• Wave length is the distance between any 2 identical points on the wave: crest to crest, trough to trough etc.