The number of wavelengths that pass a point each per second is:

PHYSICAL SCIENCES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	frequency
B	period
C	longitudinal
D	transverse wave

Explanation:

Detailed explanation-1: -Wave frequency is the number of waves that pass a fixed point in a given amount of time. The SI unit for wave frequency is the hertz (Hz), where 1 hertz equals 1 wave passing a fixed point in 1 second.

Detailed explanation-2: -Recall that the unit for frequency is hertz (Hz), and that 1 Hz is one cycle-or one wave-per second.

Detailed explanation-3: -The number of crests that pass a given point within one second is described as the frequency of the wave. One wave-or cycle-per second is called a Hertz (Hz), after Heinrich Hertz who established the existence of radio waves. A wave with two cycles that pass a point in one second has a frequency of 2 Hz.

Detailed explanation-4: -The number of complete waves produced in one second, or the number of vibrations/oscillations of the sound wave travelling through medium per second is called frequency of the wave. The SI unit of frequency is hertz (Hz).

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