Suppose you want to produce a diffraction pattern with X-rays whose wavelength is 0.035 nm. If you use a diffraction grating, what separation between lines (slits) is needed to generate a pattern with the first maximum at an angle of 13o? 6.4 nm 0.16 nm 0.08 nm 0.56 nm   Suppose you want to produce a diffraction pattern with X-rays whose wavelength is 0.035 nm. If you use a diffraction grating, what separation between lines is needed to generate a pattern with the third maximum at an angle of 28o? 4.5 nm 0.11 nm 0.22 nm 0.47 nm

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Q: .96 X 10-19 C  b 6.25 elementary charges  c 1.60 elementary charges  d 6.25 × 10-19 C

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Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.