Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. In ordinary photography, each part contains information of the original object separately and in case some part of the object is destroyed then the information of that part of the object is also lost. How ever in case of a hologram, even the smallest par of the hologram contains complete information of the object and as such destruction of a part of hologram does not cause any harm so far as the information of the object is concerned.
2. In ordinary photograph, we cannot record many images of the different objects on a small photographic film simultaneously as we cannot get any information by superimposing number of photographs on a small film. However in case of a hologram, large number of images can be recorded simultaneously. For example a photograph of the size 6*9 mm can record one printed page while the same size can record about three hundred such pages.
3. On a hologram, the pattern of images are formed using a particular sit of wavelets. In order to get the information from the hologram, same set of wavelets are to be used. In this way secret information can be recorded on a hologram as for decoding only the original wavelets have to be used and these are known to the person who recorded the information on the hologram.
4. These days holography has improved and holograms can be viewed by white light as well.
5. Recently coloured holograms have also been developed by Russian scientists using the coloured photography techniques.
Q Using a combination of Uni-selectors and two motion selectors, draw a diagram of thousand line exchange and illustrate its working. Ans: The diagram for such an exchange i
Explain all of your steps and follow a logical train of thought. Clearly describe all design rationale. 1) Design a device to deliver a sinusoidal 500kHz pulse through a piezoe
Verify the resistance of 1200 m of copper cable having a diameter of 12 mm if the resistivity of copper is 1.7 x 10-8 Ωm
Magnetic materials
Q. Draw the various characterstics of a DC shunt generator and explain critical resistance. Sol. Following are three most important characterstics or curves of a d.
Q. What do you mean by Amplifier block? An amplifier can be modeled as a two-port device, that is, a box with two pairs of terminals designated as input and output, as shown in
Describe the construction of lead acid battery
Discuss the properties and uses of ALNICO. Alnico : It is an alloy of iron, nickel, cobalt and small amount of copper and aluminium. Properties are - 1. Its saturation f
A zipper has N links every link has a state in which it is closed with energy 0 and a state in which it is open with energy 0 We require that the zipper only unzip from one side (s
. In successive-approximation A/D converter, offset voltage equal to 1/2LSB is added to theD/A converter’s output. This is done to
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd