45th B.P.S.C. (Pre) 2001
What is the distance between two successive crests or successive troughs called?
aAmplitude
bWavelength✓ Correct
cFrequency
dNone of these
Explanation
When a simple periodic wave passes through a medium, the same pattern repeats after a fixed distance (for example, the distance between two successive crests or troughs). This distance is called the wavelength.
general-science