Linear Equations or Equations of Straight Lines can be written in different forms. These free video lessons covers the various forms of linear equations .The following table gives the Forms of Linear Equations . Scroll down the page for examples and solutions. Slope–Intercept form.;If you want to install a door in your house, you have to first frame the door opening to prepare it for the installation. With a ladder, some nails and a hammerKnow what lumber to purchase. Determine the size of the framing members in the wall you are framing the door in . Wood studs are most often 2x4;A grate inlet in sag configuration operates in weir flow at low ponded depths but transitions to orifice flow as the ponded depth increases.Determine an allowable head (h) for the inlet location. For a grate in a curb and gutter section, this should be the lower of the curb height or the depth associated;Quantum mechanics was first applied to optics, and interference in particular, by Paul Dirac. Richard Feynman, in his Lectures on Physics, uses Dirac's notation to describe thought experiments on double slit interference of electrons.;(i) State equation relating the forces acting on the raindrop when it is falling at terminal velocity.Determine number of lines per metre of the diffraction grating . (iii) Calculate wavelength of another part of the visible spectrum that gives a maximum for a different order at the same angle as in (ii).;Young's double slit equation .Young's double slit problem solving. Diffraction grating . Single slit interference.

### Diffraction grating equation (Derivations for AQA Physics A Level) 2/5

In this series of 5 videos we look at the five times "derivation" or "derive" is mentioned in the AQA Physics A level. In this second clip, we look at how;Diffraction gratings are used for dispersing light, i.e., for spatially separating light of different wavelengths. They are used as an alternative to prisms in most fields of spectral analysis. Their production dates back to the late eighteenth century.;1 Grating Equation In Figure 1, parallel rays of monochromatic radiation, from a single beam in the form of rays 1 and 2, are incident on a (blazed) diffraction grating at an angle θi relative to theThe location of the m = 0 order will always be found at an angle equal and opposite to the incident angle.;Grating Equation . Location of the m=0 Order.Often, the incident illumination is perpendicular to the gratings surface. That is, the incident angle is zero. In this case the grating formulation of Eq.