# single and multiple interference

Anonymous
timer Asked: Jun 21st, 2018

Question description

1. Use the single-slit simulator below to validate the equations learned in this activity related to single-slit diffraction. Use the simulator to obtain measurements, and then show complete calculations of the wavelength of light using all five of the single-slit equations. (Note that you will have to calculate the angle using the sine function.) Choose any set-up you desire in terms of distance to the screen, width of the slit, and wavelength. How do your calculated wavelengths compare to the wavelength given in the simulation?
2. When white light, composed of all wavelengths (as opposed to monochromatic light that is composed of one wavelength of light), is shone through a diffraction grating, bands of various colours appear on the screen. For example, there may be first-order (m = 1) fringes for red, orange, and yellow as well as second or third order fringes for these colours.In this particular case, white light is shone on a grating that is 1.00 cm wide and contains 10 000 lines. Firstorder fringes are produced for three colours of light at angles of 30o, 35o, and 40o. Find the wavelengths that produce first-order maxima at these angles. Find out what colours are associated with these wavelengths

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