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Principle Ray II. Preliminary on the object side of the lens ray II heads toward the plane of the lens along a line that is parallel to the principle axis of the lens. At the plane of the lens it suddenly adopts a path that takes it directly away from the focal point that is on the same side of the lens as the object. If you outline that ray straight back the trace-back line passes through said focal point.
VELOCITY: The time rate of change of displacement of a body is known as velocity. It is represented by V ?.
If either screen or source or both are at preset distance from the diffracting device (obstacle or aperture), the diffraction is known as Fresnel type.
motion of particle by to shm
one of scrooges relatives visited him in the counting house. who was it and what did he want ........................... i couldnt found a subject with reading
A pith ball weighing 3.0 x 10 -2 N carries a charge of -1.0 x 10 -6 C. The pith ball is placed among two large, parallel, metal plates that are divided by 0.050 m. What is
what is dielectric polarisation
Q. Why does the sky appear blue in colour? As-per to the Rayleigh's scattering law the shorter wavelengths are scattered much more than the longer wavelengths. The blue look o
theory
Electromotive Force: (emf) A force which derives the electric current is known as electromotive force. OR The energy needed to drive the charge around the circuit is know
Q. What are the characteristics of laser beam? Characteristics of laser The laser beam (a) is monochromatic. (b) is coherent with the waves all exactly in phase with o
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