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Simple 'spring' balance
Punch four holes in an old tin lid with a nail, spacing them partially round the circumference. Pass pieces of string by these holes and tie them together. Now join this scale.
If weights are not available, it is possible to graduate the balance using known volumes of water poured from a calculating jar and by making marks on the supporting stick conflicting the edge of the pan. Stones canthen be found which will give the similar extension and these should be marked for future use as weights. The use of coins for this purpose should also be investigated.
State and illustrate Huygens' principle. Explain the consequences of total internal reflection.
The current/voltage relationship for two resistors A and B is as shown in Figure. Verify the value of the resistance of every resistor.
Why different colours of white light travell with different speed in a glass prism,while they travell with same speed in air? Ans)Since in diffeernt medium frequecy remains const
Q. State the law of conservation of electric charges? The entirety charge in an isolated system always remains constant. For instance Uranium ( 92 U 238 ) can decay by emittin
at a particular instant the speedometer of a vehicle shows 30km/hr .it is the a}average speed b}instantaneous speed c}uniform speed d}non-uniform speed
pseudo force: A "force" that arises since an observer is naively treating an accelerating frame like an inertial one.
These materials are used for permanent magnet manufacturing because of their low cost and their low weight. It consists of low iron oxide in combination with either barium carbonat
Demonstration vernier Two pieces of tongued and grooved floor board about 1 m long can be used to make this apparatus. Saw 7 cm off the tongued board and glue it into the groov
Derive mathematical equation for an electromagnetic wave travelling in a charge free conducting medium in terms of electric field vector.
Q. How is a galvanometer converted into (a) an ammeter and (b) a voltmeter? A galvanometer is transformed into an ammeter by connecting a low resistance in parallel with it. Th
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