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Q. Movement of principal ray?
In every case a principal ray moves from the head of the object to the plane of the lens. It passes through the plane of the lens as well as continues travelling into the space on the other side of the plane of the lens the side opposite that on which the object resides. In depicting principal rays one should include at least one arrowhead pointing toward the plane of the lens on the ray segment that extends from the head of the object to the plane of the lens as well as at least one arrowhead pointing away from the plane of the lens on the ray segment on the other side of the lens the side opposite that on which the object resides.
a) It is a sort of disturbance which goes by a medium. b) Material phase is necessary for the propagation of mechanical waves. c) When a wave motion goes by a phase, molecule
what should be the orientation of an electric dipole so that its potential enrgy is minimum
Ask question #whether s component or p component present in the reflected light of Biot''s polariscope# Minimum 100 words accepted#
For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.
(1) Melting point : 936 0 C (2) Atomic number : 32 (3) Energy gap : 0.6ev (4) It is a gray metallic looking mat
what is screw jack
What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.
what is mirage
Do fibers have losses? Everything in the universe is inefficient. It means that while a measured amount of something enters in a system, less comes out than initially went in.
Draw and discuss Pentode Plate Characteristics. Ans: Pentode Plate Characteristics: Pentode plate characteristics (plate current-plate voltage curves at constant grid vol
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