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Q. Magnifying Glass is basically a
A magnifying glass (called a hand lens in laboratory contexts) is a convex lens that is used to produce a magnified image of an object.
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Q. What is the minimum escape velocity of rocket to be launched into space ?
Q. The characteristic invalid for heat radiation is that it travels :
Q. Wind and solar energy are examples of
Q. A moving body on Earth ordinarily comes to rest by itself because of the
Q. An object which absorbs all colours & reflects none appears:
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