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WHERE DOES C.O.G AND C.O.M DIFFER?....GENERALLY BOTH COINCIDES....GIVE EXAMPLE WHERE BOTH DIFFER?
Ans) C.O.G and C.O.M mainly coincides at the see-level region.But C.O.G is a variable and changes with the value "g" and thus "Mg" of any body also changes.e.g At high altitudes like himalayas, mountains(C.O.G & C.O.M)differs,at the depth of earth,s surfaces. C.O.M is constant everywhere in the universe.
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NEWTON'S FIRST LAW AND INERTIA: All the material bodies possess the property of opposing any alter in the state of rest or uniform motion when some external force is applies up
Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)
different questions and their answers about elasticity
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Q. (a) A giant refracting telescope at an observatory has an objective lens of focal length 15m. If an eyepiece of focal length 1.0 cm is used, what is the angular magnification o
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DISPLACEMENT: The change in the position of a body from its starting position to its final position is known as displacement. It is denoted by d ?.
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