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PHYS143 (DB125) Physics For Engineers
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Two slits are separated by 0.180 mm. An interference pattern is formed on a screen 80.0 cm away by 656.3-nm light. Calculate the fraction of the maximum intensity a distance y = 0.600 cm away from the central maximum.
Two slits separated by 0.10 mm are illuminated with green light ( = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1 m away?
Estimate the distance (in
cm) between the central bright region and the fourth dark fringe on a screen 4.00 m from two double slits 0.500 mm apart illuminated by 530-nm light.
A narrow slit is
illuminated with sodium yellow light of wavelength 560 nm. If the central
maximum extends to
±20.0°, how wide is the slit?Two slits separated by
0.050 mm are illuminated with blue light (
lambda= 450 nm). How many
bands of bright lines are there between the central maximum and the 10-cm
position? (The distance between the double slits and the screen is 1.5 m.)
A thin sheet of plastic (n = 1.60) is inserted between two panes of glass to reduce infrared ( = 900 nm) losses. What thickness (in nm) is necessary to produce constructive interference in the reflected infrared radiation?