Biologists use optical tweezers to manipulate micron-sized objects using a beam of light. In this technique, a laser beam is focused to a very small-diameter spot. Because small particles are attracted to regions of high light intensity, the focused beam can be used to "grab" onto particles and manipulate them for various experiments. In one experiment, a 10 mW laser beam is focused to a spot that has a diameter of 0.82 μm.
Required:
a. What is the intensity of the light in this spot?
b. What is the amplitude of the electric field?
Answers: 3
Physics, 22.06.2019 12:20, macycj8
A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.
Answers: 2
Physics, 22.06.2019 14:00, mariah10455
Ascientific blank must be testable and capable of being proven false?
Answers: 1
Biologists use optical tweezers to manipulate micron-sized objects using a beam of light. In this te...
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