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Arago spot (D.F.J. Arago)
A bright spot which appears in the shadow of a uniform disc being backlit through monochromatic light emanating from a point source.
How to obtain localized fringes
Explain briefly, with the help of circuit diagram, how V - I characteristics of a p-n junction diode are obtained ii (i) forward bias, and (ii) reverse bias. Illustrate th
Determine the highest order spectrum which can be seen with monochromatic light of 589.3 nm wavelength by means of a diffraction grating having 15000 lines/inch.
Why do magnetic field lines contract longitudinally and exert a lateral pressure?
Action and reaction in pushing forces Forces work in pairs. If you push against a wall, the wall pushes with equivalent force back against you. Secure two kitchen spring balanc
What instrument is used to measure volume? Liquid volume is calculated with beakers, measuring cups, spoons, graduated cylinders, and the like. For regular objects, solid volum
Give one example each for thermoplastic and thermosetting polymers Thermoplastics - Polyethylene, PVC etc. Thermosetting plastics - Bakelite (Phenolfomaldehyde resin), Urea
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
why value of g at center of earth is zero?
what is motion?
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