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Cutting a glass dish from a used electric bulb
The hemispherical bottom of an electric light bulb gives a useful glass dish; a soldering iron can be used to cut it off. put the bulb on its side and make a scratch with a file somewhere with its line of greatest circumference. Carry the soldering iron at an angle of 450 in a laboratory clamp so that the tip is the similar height above the bench as the point of incision. Hold the bulb in both hands and, keeping it horizontal; bring the scratch into contact with the point of the soldering iron.
A figure separated into squares, each of size 1 mm 2 is being viewed at a distance of 9cm by a magnifying lens of local length 10cm, held close to the eye. (i) Illustrate a ray
Q. State Brewster's law. Brewster's law the digression of the polarising angle is numerically equal to the refractive index of the medium. That is tan ip = μ
the numerical ratio of displacement to the distance covered is always ???????????????
show that work is a path function not a property
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(1) Directive properties: When a magnet suspended freely it remains in the earth's N-S direction (in magnetic meridian). (2) Monopole concept: If a magnet is broken into number
Que: Specified the electric potential as a function of the Cartesian coordinates x, y, and z how does one determine the electric field? Ans: If the electric potential i
What do you mean by transformer ratio? A current of 2A is passed through a coil of 1000 turns to produce a flux of 0.5µwb. Determine the self inductance of the coil.
An object moving with a speed better than the speed of sound is called to be move with a supersonic speed.
Two 20-g ?atworms climb over a very thin wall, 10 cm high. One of the worms is 20 cm long, the other is wider and only 10 cm long. Which of them has done more work against grav
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