The question is incomplete, the complete question is;
Humans have three types of cone cells in their eyes, which are responsible for color vision. Each type absorbs a certain part of the visible spectrum. Suppose a particular cone cell absorbs light with a wavelength of 430. nm . Calculate the frequency of this light. Round your answer to 3 significant digits.
Answer:
6.98 × 10^14 Hz
Explanation:
From;
V= λf
Where;
V= speed of the wave ( speed of light in this case= 3 × 10^8 ms-1)
f= frequency of the wave= the unknown
λ= wavelength of the light = 430 ×10^-9 m
f= v/λ
f= 3 × 10^8/430 × 10^-9
f= 6.98 × 10^14 Hz