A3. Diffraction Physics II. 6 marksThe following electron dif... | Filo

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Using Cornu's spiral plot a straight-edge diffraction pattern where ρ0=100  cm, r0=200  cm, and λ=6000 Å( ρ0 is the distance from source to obstacle, r0 is the distance from obstacle to screen, and λis the wavelength of light), plot intensity against distance x as measured on the screen. Label the distances x for the first three maxima. | Numerade

A slit illuminated with sodium light is placed 60 cm from a straight edge and the diffraction pattern is observed using a photoelectric cell, 120 cm beyond the straight edge. Determine the irradiance at (a) 2 m m inside and (b) 1 m m outside the edge of the geometrical shadow. | Numerade

Opening of a band gap - Diffraction at the edge of BZ zones?

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