Having Become Stranded In A Remote Wilderness Area You Must Live Off The Land While You Wait For Rescue One Morning Y 1 (136.46 KiB) Viewed 37 times
Having Become Stranded In A Remote Wilderness Area You Must Live Off The Land While You Wait For Rescue One Morning Y 2 (71.92 KiB) Viewed 37 times
Having become stranded in a remote wilderness area, you must live off the land while you wait for rescue. One morning, you attempt to spear a fish for breakfast. You spot a fish in a shallow river. Your first instinct is to aim the spear where you see the image of the fish, at an angle p = 43.40° with respect to the vertical, as shown in the figure. However, you know from physics class that you should not throw the spear at the image of the fish, because the actual location of the fish is farther down than it appears, at a depth of H = 0.9500 m. This means you must decrease the angle at which you throw the spear. This slight decrease in the angle is represented as a in the figure. If you throw the spear from a height h = 1.150 m above the water, calculate the angle decrease a. Assume that the index of refraction is 1.000 for air and 1.330 for water. α = H Image
Light that has a 650-nm wavelength is incident upon two narrow slits that are separated by 0.400 mm. An interference pattern from the slits is projected onto a screen that is 3.00 m away. What is the separation distance Dыi on the screen of the first bright fringe from the central bright fringe? Dbl = What is the separation distance Da2 on the screen of the second dark fringe from the central bright fringe? Da₂ = m m
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