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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 surfaces oboth shells.
Ans) THE charge on outer surface of A will be 2q and outer surface of B will be zero due to earthing charge on b will flow to earth.
A 350-Hz tuning fork is held over the end of a pipe that is inserted into water. What is the spacing between the resonance lengths of the pipe if the speed of sound is 348 m/s
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With the help of a bb diagram, define the principle of an optical communication system. Give its two advantages over cable communication system
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how heat energy is liberated during respiration?
a projectile is fired horizontally from an inclined plane (of inclination 45 with horizontal)with speed=50 m/s.if g=10 m/s2 the range measured along the incline is
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