Calculate The Longest Wavelength Visible To The Human Eye.

Calculate the de broglie wavelength of the bullet traveling at 1817 miles per hour. Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 4 state to the n = 3 state. For a microwave with a wavelength of 3cm, calculate the frequency. Calculate the diffraction limit of the human eye in visible light.