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SAT® Subject Test in Physics

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Moderate

Frequency of EM Waves

SATPHY-YNKMGC

What is the frequency of electromagnetic waves in a vacuum that have the same wavelength as a $500.0\ Hz$ sound wave moving at $345\ m/s$?

A

$ 500.0 \ Hz $

B

$ 0.690\ Hz $

C

$ 2.30 \times { 10 }^{ -9\ }Hz $

D

$ 1.45\ Hz $

E

$ 4.35\times { 10 }^{ 8\ }Hz $