Categorize each statement as true or false. At the critical angle, no light is reflected and all light is transmitted. During refraction, the ray that travels through the second medium is called the incident ray. The angle of refraction is measured from the perpendicular to the boundary between two materials. The speed of light in a medium is always less than the speed of light in a vacuum. The virtual image of a pencil in a glass of water is closer to the viewer than the actual pencil. True False

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

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Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer