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What is hologram?
Holography
When an entity is photographed by a camera a two dimensional image of three dimensional objects is obtained. A three dimensional image of an object is able to be formed by holography.
In normal photography the amplitude of the light wave is recorded on the photographic film. In holography both the phase as well as amplitude of the light waves is recorded on the film. The resultant photograph is called hologram.
For germanium the forbidden gap is (A) 0.15ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For germanium the forbidden gap is 0.7ev.
The fringe width in a Young's double slit arrangement is 0.008cm. What could be the fringe width if the slit separation is halved and the screen slit distance is doubled?
What is about Capacitor Capacitor: Two conducting surfaces divided by an insulating layer. It's a device capable of storing energy and charge. Capacitance= Charge on condu
What are the thomson coefficients for copper and constantan?
Q. Explain why does heated air expand? Answer:- Temperature is habitually defined as the average thermal energy of the substance at hand. Therefore the hotter a substance
A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the similar orbit, the second satellite must have a velocity which i
Third Harmonic- Standing Waves on a String There are a variety of patterns that could be generates through vibrations inside slinky, a string, or rope. Each pattern corresponds
What is incorrect with this picture? Answer: The Current is the flow rate of charge. When the charge obtains to the junction of three wires (including the wire the
what, why, use
During some kind of process the pressure of 2 mol of nitrogen gas linearly depends on the volume: p = p 0 + kV here p 0 and k are constants. What are the values fo
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