Wavelength, Frequency, and Speed (Leaving Cert Physics): Quizzes

$v = f\lambda$

Complete wave cycles per second

$T = \frac{1}{f}$

Distance between identical consecutive points

$3 \times 10^8$ m/s

$c = f\lambda$

Wavelength decreases proportionally

85 Hz

0.05 s

Hertz (Hz)

Radio: low f, long λ; Gamma: high f, short λ

Shorter wavelengths, higher pitched