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Finding the centre of gravity of objects
Secure a triangular file and place it on a table as a balancing point. Any sharp-edged device with a hat side might be used. Balance several sticks, rods and devices like as brooms, bats, brushes, etc.,
Define Electric Circuits So far we have only looked at electric charges sitting still and static discharges (like a shock or lightning). When we count on the charges moving thr
OHM’S LAW: So far you have been introduced to the concepts of electric current (as a movement of free electrons through a conducting material), voltage (or potential) and poten
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
A ray of light falls on a glass slab of refractive index u.if the reflected and refracted rays are mutually perpendicular to each other,find the angle of incidence. Ans) let i b
Derivation of venturimeter
A capacitor is to be constructed so that its capacitance is 0.2µF and to take a p.d. of 1.25kV across its terminals. The dielectric is to be mica which, after allowing a safet
A 100 hp car engine operates ata bout 15 percent efficiency. Assume the engine's water temperature of 85°C is it scold-temperature (exhaust) reservoir and 500°C is its thermal "int
A man pushes a couch a distance of 0.75 m. If 113 J of work is done. what is the magnitude of the horizontal force applied?
why is friction a necessary evil?
Which of the subsequent is a principal ray for the case of an actual physical object and a convex (converging) lens? Indicate all that apply. Ans: In the thin lens approxi
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