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Explain Rolling
Rolling: A pair of cylindrical rollers made of iron or steel rotate in opposite direction with a gap between them which is smaller than the cross section of the piece which is to be rolled. The work piece is inserting into the gap and as it passes among the rolls, it is squeezed, its cross section being progressively reduced. As the working volume remains constant, the result of passing by the rolls would be lengthening of the work piece and a corresponding decrease and shaping of the cross section. ling and Forging
The phenomenon of the formation of the Newton's rings can be explained on the basis of wave theory of light. When a light ray iP1 from an extended monochromatic light source S is a
Show the types of chromatic aberration. What do you understand by Fraunhoffer lines? Explain their origin.
In plotting a x y graph which axes is the dependent variable and which is an independent function. Ans) Normally or you can say conventionally we take the x axis as independen
INDUCTOR:- An inductor (also choke, coil, or reactor) is a passive two-terminal electrical component that stores energy in its magnetic field. For comparison, a capacitor stores en
Q. If an object isn't moving, no external force acts on it. No it is always not true, there would be balanced forces which cancel each other out leaving no net force. Example:
What do you mean by photo electric effect? Show the laws of photoelectric effect. Illustrate these laws using Einstein's equation of photo electric effect?
When is the combination of cells advantageous and why? (Mar 2009) What do you mean by internal resistance of a cell? Write down the value of internal resistance of an ideal cell
THE MAGNETIC CIRCUIT In an electric circuit, a current is established due to the existence of an electromotive force. In the same way, in a magnetic circuit, a flux is establis
Two tiny objects with equal charges of 71.0 µC are placed at two corners of a square with sides of 0.340 m, as shown. How far above and to the left of the corner of the square labe
When deforming forces are applied to a body, there is a change in the size of the body. The object is known as strained or deformed. The ratio of change in dimension to the origina
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