The speed of an electromagnetic wave is a constant, 3.0 × 108 m/s. the wavelength of a wave is 0.3 meters. what is the frequency? a. 9.0 × 108 hz b. 1.0 × 109 hz c. 1.0 × 108 hz d. 9.0 × 107 hz

option B. 1.0 × 10⁹ Hz

Explanation:

The speed, s, of a wave, equals the product of its frequency, ν, times its wavelength, λ:

As the question states, the speed of an electromagnetic wave is a constant, c, equal to 3.0 × 10⁸ m/s.

Substituting this constant in the equation for the speed of the wave, you get:

From that equation, you can solve for the frequency to show the inverse realation of frequency and wavelength:

Now, you just have to substitute values and compute:

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

spectral lines lyman is one set