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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.
How is radiation emitted from the body? The body radiates energy by thermal conduction by the skin to the air, clothes, etc, around the body. A small amount of energy would als
a) Explain what is meant by the term "Heat Energy" b) An Aluminium bar 0.5m long, initially at 20° C is heated until its temperature rises by 50 0 C. Determine the change in l
A small air bubble is inside a cube of 0.21 m. When viewed from one face it seems to be at a depth of 0.06 m, when viewed from opposite face the bubble seems to be at a depth of 0.
Explain the Diagramming Waves? There are two ways that waves can be indicated in a two-dimensional diagram. Parallel lines can be drawn that are meant to show the position of
Length contraction
What is force
A multimode, step-profile fibre has a core radius of 50 microns, a core index of 1.52 and a cladding index of 1.50. (a) If the fibre end-face is excited by a source with a wave
why gravitational energy for a system of particles is found by first finding the gravitational energy between individual particles and then adding it up? Ans) It is a scalar qua
why the light vibrating in the plane ofincidence is not reflected at Brewster''s angle?
The greatest induced EMF will occur in a straight wire moving at constant speed through a uniform magnetic field when the angle between the direction of the wire's motion and the d
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