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23 Nov 2019

A plane wave of wavelength 540 nm is incident on a slit with awidth of a = 0.45 mm. A thin converging lens of focal length +70 cmis placed between the slit and a viewing screen and focuses thelight on the screen.

(a) How far is the screen from the lens?
cm

(b) What is the distance on the screen from the center of thediffraction pattern to the first minimum?
mm

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Irving Heathcote
Irving HeathcoteLv2
26 Aug 2019

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