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Making a simple reflecting telescope
A simple reflecting telescope can be made from a concave mirror obtained from a shaving mirror. The mirror is arranged wooden box of suitable size in such a way that it can be tilted at dissimilar angles. An upright made of wood is attached to the box so that its angle may also be varied. Two short focus lenses are fixed in corks which are then placed in a short length of mailing tube as an eye-piece. Then join this eye- piece attached to the wood upright exactly at the focal
Emulsification : Water immiscible liquid wastes can be emulsified using soap or detergent solution and then run into the drainage. Examples: Benzene, toluene, cyclohexane, nitrobe
Explain the Dialysis By now, you must have well understood the functions of kidney and the implications of abnormal kidney functioning as well. Here in this section, we sh
Magma that reached the Earths surface is known as: Lava
Objectives : After studying this unit, you should be able to: 1. List the obligations of the teachers and the Head of the institution towards 2. Safe working conditions
Dissecting simple flowers Label each of five cards or pieces of White paper with one of the following words: stamens, pistil, petals,sepals, receptacle . Dissect a flower ca
How to prevent the erosion of topsoil Use the trays constructed for the experience above. (a) Fill the trays with loose soil and tilt everyone the similar amount. Make furr
1. The red shift seen in all distant galaxies, whose size is proportional to its distance from us, what effect will this have on planet Earth?
j shaped plant curve
Method of science: We have seen above that science is an enaeavour to understand nature and to mould it to satisfy human needs. In earlier units we have seen that, in this pr
Microbes: You should know that invisible microbes are present everywhere, because they can surviveeven under very inhospitable conditions. They are all around us, in the air
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