University:
The University Of Western Ontario
Course:
2223B | Organic Chemistry of Biological Molecules
Academic year:

2023
Views:

370

Pages:

1
Author:

Cole M.

Light & Electromagnetic Radiation Electromagnetic Waves & the Electromagnetic Spectrum: Changing electric fields can induce a magnetic field and magnetic fields can induce an electric field Light is an example of an electromagnetic wave The speed of a wave equation: 𝑐 = 𝜆𝑓 (sometimes frequency is shown as 𝓿) - Polarization of Light, Linear & Circular: Polarized light is light where the electromagnetic waves are only oscillating in one direction Polarizers let light through but in only one direction (you can orient it in basically any angle you want) When light reflects off a surface, it is typically partially polarized in the orientation of the surface it bounced off of Diffraction & Constructive/Destructive Interference: Constructive interference occurs when two waves line up perfectly and combine to make a wave with the sum of the amplitudes Destructive interference is the opposite and occurs when two waves that are not in phase with one another come together (makes amplitudes smaller) A laser is basically just a bunch of light waves with the same wavelength that are all lined up with one another - Photon Energy: Energy of a photon: Ephoton = hf (where f is sometimes called v) h is Planck’s constant, which is 6.626x10-34 Js