إختِبارات ومُلخَّصات مُمَهِدو التَخدير
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آرشیو پست ها
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visible light has wavelengths
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are used in many medical instruments
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in which the light is reflected at an angle that is equal to the angle at which it strike the surface
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is related with very smooth shiny surfaces
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More useful types of reflection
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occurs when rough surfaces scatter the light in many directions
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used for coagulante small blood vessels in the retina
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When light absorbed its energy appearsas :
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when absorbed by a single molecule it can cause a chemical change
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The particle form light is
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The ratio of the
speed of light in a vacuum to its speed in a given material is called ?
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electromagnetic radiation whithin the portion of electromagnetic spectrum ?
The inner ear is hidden deep within the hard bone of the skull best protected sense organ
The ossicles and their sensory ligaments play an important role in protecting the ear against
