Question

What is the wavelength of light waves if their frequency is 5.0x1014 Hz and the speed of light 3 x
108 m/s?


A. 0.60 m
B. 6.0 mm
C. 0.060 mm
D. 0.60 um

Answer 1

Answer:

D. 0.60 um

Explanation:

Given the following data;

Frequency = 5.0x10^14 Hz

Speed = 3 x 10^8 m/s

To find the wavelength;

Wavelength = speed/frequency

Substituting into the equation, we have

Wavelength = 3 x 10^8/5.0x10^14

Wavelength = 6 × 10^7m

But 1 meter (m) = 1000000 micrometer (um)

6 × 10^7 meter = 0.6 micrometer.