An electric eye sensitive to 660 nm light with an optical diameter of 3.50 mm is...
An electric eye sensitive to 660 nm light with an optical diameter of 3.50 mm is orbiting the earth at an altitude of 20.0 km. You need to be able to track separately two trucks in a convoy. How far apart must the trucks be if you are to distinguish them?
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An electric eye sensitive to 660 nm light with an optical
diameter of 3.50 mm is...
If 720-nm and 660-nm light passes through two slits 0.68 mm apart, how far apart are...
If 720-nm and 660-nm light passes through two slits 0.68 mm apart, how far apart are the second-order fringes for these two wavelengths on a screen 1.0 m away?
If 730-nm and 660-nm light passes through two slits 0.63 mm apart, how far apart are...
If 730-nm and 660-nm light passes through two slits 0.63 mm apart, how far apart are the second-order fringes for these two wavelengths on a screen 1.2 m away? Express your answer to two significant figures and include the appropriate units.
You are looking down at the earth from inside a jetliner flying at an altitude of...
You are looking down at the earth from inside a jetliner flying at an altitude of 9500 m. The pupil of your eye has a diameter of 2.00 mm. Determine how far apart two cars must be on the ground if you are to have any hope of distinguishing between them with the following lighting. (a) red light (wavelength = 665 nm in vacuum) (b) violet light (wavelength = 405 nm in vacuum)
A beam of laser light of wavelength 632.8 nm falls on a thin slit 3.50×10−3 mm...
A beam of laser light of wavelength 632.8 nm falls on a thin slit 3.50×10−3 mm wide. After the light passes through the slit, at what angles relative to the original direction of the beam is it completely cancelled when viewed far from the slit? Type absolute values of the three least angles separating them with commas.
A sodium vapor light isotropically emits 15W of light energy at 589 nm. If your pupil...
A sodium vapor light isotropically emits 15W of light energy at 589 nm. If your pupil has a diameter of 4.5 mm, how many photons will pass into your eye every second from a distance of 12 m? 12 km? The threshold of seeing is about 5 photons/second. How far away can you see this 15W bulb? Note that the flux of a light source is the power absorbed/area.
A very fine wire 7.65×10?3 mm in diameter is placed between two flat glass plates. Light...
A very fine wire 7.65×10?3 mm in diameter is placed between two flat glass plates. Light whose wavelength in air is 660 nm falls (and is viewed) perpendicular to the plates and a series of bright and dark bands is seen. Part A How far apart are the dark fringes if the glass plates are each 21.5 cm long? Express your answer to three significant figures and include the appropriate units. ?x =____ (units?)
) In the figure, a slit 0.30 mm wide is illuminated by light of wavelength 426 nm. A diffraction attern is seen on a screen 2.8 m from the slit. What is the linear distance on the screen betw...
) In the figure, a slit 0.30 mm wide is illuminated by light of wavelength 426 nm. A diffraction attern is seen on a screen 2.8 m from the slit. What is the linear distance on the screen between e first diffraction minima on either side of the central diffraction maximum? Answer: 8.0 mm 30) A thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 lines/cm. The resulting pattern is viewed on a...
) In the figure, a slit 0.30 mm wide is illuminated by light of wavelength 426 nm. A diffraction attern is seen on a screen 2.8 m from the slit. What is the linear distance on the screen between e first diffraction minima on either side of the central diffraction maximum? Answer: 8.0 mm 30) A thin beam of laser light of wavelength 514 nm passes through a diffraction grating having 3952 lines/cm. The resulting pattern is viewed on a...
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