Biologists use optical tweezers to manipulate micron-sized objectsusing a beam of light. In this technique, a laser beam is focused to avery small-diameter spot. Because small particles are attracted toregions of high light intensity, the focused beam can be used to"grab" onto particles and manipulate them for various experiments.In one experiment, a 20 mW laser beam is focused to a spot thathas a diameter of 0.82 μm.Part AWhat is the intensity of the light in this spot?Express your answer with the appropriate units.I =SubmitPart BEo =ValueOμASubmitWhat is the amplitude of the electric field?Express your answer with the appropriate units.0Request AnswerμAValueUnitsRequest AnswerUnits*****??

Given data: Power of laser beam, P=20 m W=20×10-3 W Diameter of the spot, d=0.82 μm=0.82×10-6 m

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 20 mW laser beam focused to a spot that has a diameter of 0.82 μm. Part A What is the intensity of the light in this spot? Express your answer with the appropriate units. I= Submit Part B Value Eo = μA Submit Request Answer What is the amplitude of the electric field? Express your answer with the appropriate units. μĂ Value Units Request Answer Units ? ?

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 20 mW laser beam focused to a spot that has a diameter of 0.82 μm. Part A What is the intensity of the light in this spot? Express your answer with the appropriate units. I= Submit Part B Value Eo = μA Submit Request Answer What is the amplitude of the electric field? Express your answer with the appropriate units. μĂ Value Units Request Answer Units ? ?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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