Yellow light has a frequency of 5 point 2 times 10 to the 14th power Hz and travels at a speed of 3.0 meters meters per second What is the wavelength of yellow light, in meters?
Answer
A
1 point 7 times 10 to the 6th power m
B
2 point 2 times 10 to the negative 6 power m
C
8 point 2 times 10 to the 22th power m
D
5 point 8 times 10 to the negative 7 power m
Explanation
Use the wave equation λ = v/f. Light travels at about 3.0 × 10^8 m/s, so λ = (3.0 × 10^8)/(5.2 × 10^14) ≈ 5.8 × 10^-7 m. The correct choice is 5.8 × 10^-7 m.
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