A pattern of light is shown on the screen. You measure the distance between the source of the light and the screen to be 2.35m. The speaker tells you that the wavelength he is using is 578nm, and that the spacing between the slits is 2.98 x10^-5m. The pattern looks like this a) What type of slit plate is being used? b) what angle does a live drawn from the centre of the slit plate to the third order bright fringe make with the perpendicular biscetor? Please give answers to 3 significant digits

A pattern of light is shown on the screen. You measure the distance between the source of the light and the screen to be 2.35m. The speaker tells you that the wavelength he is using is 578nm, and that the spacing between the slits is 2.98 x10^-5m. The pattern looks like this a) What type of slit plate is being used? b) what angle does a live drawn from the centre of the slit plate to the third order bright fringe make with the perpendicular biscetor? Please give answers to 3 significant digits

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