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What is the difference between a lens and a mirror?
A mirror is a reflective surface. Light passes by the glass and hits the silver backing, reflecting off of it. (The angle of reflection equals the angle of incidence.)
A lens, on the other hand, does not reflect light; it refracts it. After entering the glass, light refracts in a different way depending on the shape of the lens and also makes a focal point where the refracting light comes to a point. This varies for different lenses -- convex or concave -- which is why there are dissimilar lenses for different types of eyeglasses.
a yellow lamp emits light with a wavelength of 6.00E-7 meters. Calculate the frequency of the yellow light.
Define Frozen Solid (Moscow Phys-Tech)? Evaluation how long it will take for a small pond of average depth D=0.5 m to freeze entirely in a very cold winter, when the
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Question: If you chafe a rubber rod with rabbit fur thus giving the rod a negative charge and bring the rod near a few bits of neutral paper the rod will attract the bits of pa
Give the overview of Newton formulation of physical laws. Newton's formulation of physical laws was so influential which his equations are still in use nowadays. By the beginni
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