Question

Frequency is defined as the distance between two neighbouring crests or troughs of a wave.

• A. True
• B. False

Answer 1

The correct option is B

False

The number of waves passing through a particular point in one second is defined as the frequency of a wave. It is represented by the Greek letter v (nu). The SI unit for frequency (v) is hertz (Hz) after Heinrich Hertz.
Cycles per second (cps) or hertz (Hz)
$1cpa=1Hz1kHz={10}^{3}Hz1MHz={10}^{6}HzWhile$
Wavelength is defined as the distance between two neighbouring crests or troughs or a wave as shown in the figure. Wavelength is represented by the Greek letter $\lambda$. (lambda) and is generally measured in angstrom ($\mathring{A}$) or nanometer (nm).
1 $\mathring{A}$ = ${10}^{-10}m$
1 nm = ${10}^{-9}m$