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Q. What do you mean by diffraction? Distinguish between Fresnel's and Fraunhofer's classes of diffraction.
Ans. The phenomena of diffraction in case of light was first observed by Grimaldil. According to this phenomenon when a obstacle is placed is path of lighr, the light waves bends around the obstacle and enter in the region of the geometrical shadow of the obstacle, is called diffraction of light. In other words, the deviation of light from its rectilinear propagation is called diffraction.
Diffraction of waves depends on the size of obstacle wavelength of waves.
When slit width is comparable to the wavelength of light, there is almost total diffraction condition.
The unity gain follower: The somewhat lengthy term operational amplifier will now be dropped and it will be referred to, as most people do, simply as the op amp. The simplest
Net working capital In computing net cash flows in the above example, we have assumed that all revenues are received in cash and all expenses are paid in cash. In reality, the act
RELIABILITY DESIGN Scientifically allocate the reliability for the target product and subsystems, all the way down to their component and parts. Conduct failure modes, e
In spot welding, the parts to be joined are normally over lapped. The work piece are clamped between two water cooled copper electrodes. On the passage of a high transient current,
Method of calculating the thrust forces: The thrust forces or gas loads can be calculated for the engine, or for any flow section of the engine, provided that the areas, pressu
A 3.6-cm inside diameter stainless steel pipe is being used to convey a liquid food. The inside convective heat-transfer coefficient is 10 J/s.m2. o C. The pipe is 0.5 cm thick and
Thermoelectric effect The measurement of temperature using a thermocouple relies on Seebeck effect. The electrons occupy different energy levels in different materials
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