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The difference between how lenses and mirrors interact with light
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Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
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Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied
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=force × distance a. work b. velocity c. pressure d. momentum
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The difference between how lenses and mirrors interact with light...
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