An electromagnetic wave moves with the velocity of light,c = 3.0 * 10⁸ m/s.If it has a wavelength of 1.5 * 10^-6 m,what is its frequency? A)4.5 * 10² s B)0.5 * 10^-14 s C)2 * 10¹⁴ s^-1 D)4.5 * 10^-2 s^-1 E)1.5 * 10^-2 s

Question

Quizplus · Accepted Answer

The frequency of an electromagnetic wave is given by the equation:
frequency = velocity of light / wavelength

Substituting the given values, we get:
frequency = 3.0 x 10^8 m/s / (1.5 x 10^-6 m)
frequency = 2 x 10^14 Hz
Writing in scientific notation, we get:
frequency = 2.0 x 10^14 Hz
Therefore, the correct choice is C: 2.0 x 10^14 s^-1.

An Electromagnetic Wave Moves with the Velocity of Light,c =