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A serviceable spring balance
The quality of rubber deteriorates rather rapidly in unfavourable climatic conditions; a coiled steel spring is preferable. The pattern defined has been found satisfactory. The coil is protected from injure by enclosing it in a tube.
The reading is made at the bottom of the tribe on a graduated wooden plunger. First wind the spring attach it by a screw eye to a piece of dowelling which will fit into the tube selected (bamboo or plastic).Fasten the other end of the spring by a wire staple to a wooden stick which will glide in the tube. Fix the dowelling to the top of the tube and put in into it a hook for suspending the balance. Screw one more hook into the wooden plunger which can now be graduated.
When Temperature increases,intensity increases,but in some time intensity decreases,Why?
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the source com
It is based on the photovoltaic effect. One of the semiconductor regions is made so thin that the light incident on it reaches the p-n junction and gets absorbed. It changes solar
MANUFACTURING: Two processes are used manufacturing. Coated film: A mixture of carbon, filler and binder is coated on a ring of insulating material. The surface of the film is
help by post offoce box explan rasistance of a wire
In Thomson's effect we pact with only metallic rod and not with thermocouple as in Peltiers effect and Seebeck's effect. (That's why sometimes it is called as homogeneous thermo el
give applications of resonance
A single fixed pulley Set up a one fixed pulley as shown in the diagram below. By means of weights see how much force is needed to lift weights of 25, 50, 75, 100 and 200 g. Ca
Q. State Moseley's law. The frequency of the spectral line in the qualities X-ray spectrum is directly proportional to the square of the atomic number (Z) of the element consid
O rdinary glass is a good insulator but is too brittle to be used for anything but scientific instrument part s, accumulator container and for certain other special purposes. It is
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