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Write about the main features in which Fresnel and Fraunhoffer approaches of diffraction differ?
Mention some (at least four) applications of diffraction.
When the two simple harmonic motions have dissimilar amplitudes and also vary in phase but they have the similar periodic time : The resultant curve may be obtained graphically
Two concentric conducting shells a and b are of radii R and 2R. A charge +q is centred at their center. Shell b is then earthed and a is given charge q. Find the charge on outer su
concave grating and rowland''s mounting theory
A long, straight, current-carrying wire carries a current from west to east. A compass is held above the wire. a. Which direction does the north pole of the compass point? S
Can any heat exist without some source of friction?
According to Reynolds, the critical velocity (vc) of a liquid flowing by a long narrow tube is (a) Directly linked to the coefficient of viscosity of the liquid. (b) Inversel
A tin can charcoal burner A large tin can at least 10 cm in diameter should be use. About 4 cm from the bottom mark off triangular windows around the can, as shown in the diagr
When current is passed by a junction of two dissimilar solids, the temperature is either evolved or absorbed at the node. This effect is known as Peltier effect
determination of refractive index
Water accelerated by a nozzle to 20 m/s strikes the vertical back surface of a cart moving horizontally at a constant velocity of 5 m/s in the flow direction. The mass flow rate of
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