Question

What is the frequency of red light 740 nm?

A) 4.05 × 10¹⁴ Hz
B) 2.56 × 10¹⁴ Hz
C) 3.22 × 10¹⁴ Hz
D) 1.28 × 10¹⁴ Hz

Answer 1

The frequency of red light with a wavelength of 740 nm is 4.05 × 10¹⁴ Hz.

Step-by-step explanation:

The frequency of red light with a wavelength of 740 nm can be calculated using the equation:

c = λv

where c is the speed of light in a vacuum, λ is the wavelength, and v is the frequency. Rearranging the equation, we have:

v = c/λ

Substituting the values, we get:

v = (3.00 × 108 m/s) / (740 × 10-9 m)

Simplifying the calculation, we find:

v = 4.05 × 1014 Hz