Light has a wavelength of 5.6 × 10² nm. What is the energy of a photon of this light?

Question

Quizplus · Accepted Answer

The energy of a photon can be calculated using the equation: 
E = hc/λ 
where h is Planck's constant (6.626 x 10^-34 J s), c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength of the light.

First, we need to convert the given wavelength from nanometers to meters: 
5.6 x 10^-12 m

Then, we can plug in the values: 
E = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s)/(5.6 x 10^-12 m) 
E = 3.55 x 10^-19 J

Therefore, the answer is choice E.

Light Has a Wavelength of 5