The energy of a photon that has a wavelength of 9.0 m is J. A) 6.0 × 10^-²³ B) 2.2 × 10^-²⁶ C) 4.5 × 10^-²⁵ D) 2.7 × 10⁹ E) 4.5 × 10²⁵

Question

Quizplus · Accepted Answer

We can use the equation E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength. 
Plugging in the given values, we get:
E = (6.63 x 10^-34 J s)(3.00 x 10^8 m/s)/(9.0 m) 
E = 2.2 x 10^-26 J 
Therefore, the correct answer is B, 2.2 x 10^-26 J.

The Energy of a Photon That Has a Wavelength of 9.0