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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.
According to Rutherford's experiment when a sample of radioactive substance is place in a lead box and permit the emission of radiation by a small hole only. When the radiation ent
Concurrent angular acceleration means angular acceleration at a particular dot instant at t = t 1 mathematically it is given as,
Q. Prove that for thin films, the interference pattern in reflected and transmitted light are complementary to each other. Also explain why the excessively thin films seen i
what is expansion of solids
Are end fitting standard? No, end fitting are not standard. Each system manufacturer favors a type of termination for his fibers along with threads, pressure glands, rivets or
In a ripple tank two regions A and B can be created by introducing a pile of glass plates in region B. Thus region B is a shallow water region while region A is a deep water re
a) Explain the magnetic effects of current? b) Do the diagram to show the direction of motion of the conductor:
What is Eclipses? Sun is a luminous body while earth and moon are non-luminous bodies. Only those parts of moon on the light of sun falls is visible. Also sun is larger than, b
Write the relation for the force acting on a charge carrier q moving with a velocity by a magnetic field in vector notation. Using this relation, reduce the conditions under which
EXPLANATION: Whenever an interaction occurs among two objects, each object exerts the similar force on the other, but in the opposite direction and for the similar length of ti
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