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Simple gears
With a hammer and a medium-sized nail, make holes in the exact centres of various used bottle caps. Straighten the edges of the caps to make them as round as possible.
Lay two of the caps on a block of wood so that the tooth such as projections meshes together. Fasten them down with carpet tacks, but make sure that they still turn simply. Turn one of the caps and note the direction that the other turns. Add a third cap and note the direction that every turns.
A diffraction grating used at normal incidence provides a spectral line of certain order with wavelength 6000A 0 superimpose on another spectral line of wave length 5000A 0 of th
A packed parachute is dropped from rest from an airplane. A daredevil is launched straight down rom the plane 3.00s later. Neglecting air resistance, the daredevil catches up to th
Magnesium is the lightest of the structural metals. While this low density is an attractive property, magnesium also has a high corrosion rate that has often been seen as a disadv
Focal length of convex lens is 0.1 m. A liquid lens is formed between a plane surface and one face of this lens of radius of curvature 0.12m. The converging combination formed is f
A locus formed by joining the points which are at the equal distance from the source....is called wavefront...
why is nichrome wire used in electric heaters? properties of nichrome wire.
Motion of an object in a straight line is called one dimensional motion. The location of a particle in one dimensional motion can be explained by only one variable (say x). For a p
Stretch the fingers and thumb of right hand at right angles to one another. Then if the fingers shows in the direction of field and thumb in the direction of current i, then normal
in newton''s rings experiment the diameter of the nth and n+14 rings are 3.2mm and 6mm respectively.Radius of curvature of plano convex lens is 1m.Calculate wavelength of light.
At high reverse voltage, due to high electric field, the minorities charge carriers, while crossing the junction acquires very high velocities. A chain reaction is prepared, giving
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