Place your online order of $25 or more*. Ship to an address within the United States (including U.S. territories) Your shipment should arrive within 2-6 business days from your order. Your total purchase must reach the designated amount after any discounts are applied and prior to the costs of shipping and tax.
So using the standard equation: E = hf, we can find the relationship between light intensity and wavelength as follows: c = lambda x f Therefore, f = c/lambda substitute this in the standard equation to get: E = (h c)/lambda Where h = planks constant, and c = speed of light.
index of refraction : n = c / v. When light travels from one medium to another, the speed changes, as does the wavelength. The index of refraction can also be stated in terms of wavelength: Although the speed changes and wavelength changes, the frequency of the light will be constant. The frequency, wavelength, and speed are related by: