Calculate the velocity of red light with a wavelength of approximately 4.0 nm (nm = 10^-9). A)7.5 *10^-1 nm/sec B)7.5 *10¹⁸ nm/sec C)1.2 *10^-17 nm/sec D)1.2 * 10¹ nm/sec

Question

Quizplus · Accepted Answer

The velocity of light (c) is approximately 3.0 x 10^8 m/s. To find the velocity of red light, we use the formula c = λν, where λ is the wavelength and ν is the frequency. Since the wavelength is given in nm (nanometers), and knowing that the speed of light is a constant, the correct answer must reflect the speed of light in the appropriate units, which is closest to 3.0 x 10^8 m/s or 3.0 x 10^17 nm/s, making option B the correct choice.

Calculate the Velocity of Red Light with a Wavelength of Approximately