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Explain the Density
Density is a measure of how densely packed matter is. One standard brick weighs more than the same size piece of Styrofoam but less than the same size brick of lead.
Example - How many kilograms of air are in your room? Assume your room is 10 m x10 m x 3.0 m. The density of air at sea level is about 1.2 kg/m3.
It is desired to lessen the reflection of light by the outer surfaces of the objective lenses of a pair of binoculars. These surfaces are the foremost surfaces that light hits on e
What are lens aberrations? Give reasons for them. Illustrate the working of a simple microscope and give a mathematical expression for its magnifying power.
An experiment was carried out to measure forces acting in two members of a pin-jointed framework due to different applied loading conditions. Dial gages P and Q were calibrated and
EXPLANATION: Whenever an interaction occurs among two objects, each object exerts the similar force on the other, but in the opposite direction and for the similar length of ti
Two parallel plates having a p.d. of 200V among them are spaced 0.8mm apart. What is the electric field strength? Find also the flux density when the dielectric among the p
2-Point Source Interference Patterns The diagram below displays various two-point source interference patterns. The crests of each wave are denoted through a thick line althoug
Describe with the help of a labelled diagram the underlying principle and working of a step-up transformer. Why cannot such a device be used to step-up D.C. voltage? Or Dr
plotting
The effects of short circuits: A short circuit is a path for current where a path should not exist, the path is generally considered to have a low resistance. If a short circui
Solid state simeconductor It is main advantage is that it has much better resolution than NaI(Tl) It is main disadvantages are that it is not available in large sizes and it i
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