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Q. If the earth suddenly stop rotating, the value of "g" will be
If the earth stops rotating then the value of 'g' at equator will increase because when the earth rotates the gravity at every point remains uniform and when it stops rotating, the gravity increases as pressure is exerted on only one point at the equator.
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Q. When a steel ball is placed on the surface of mercury, it does not sink because
Q. What are those oscillations whose amplitude goes on decreasing with time are known as?
Q. Which of the following is the smallest unit of length?
Q. Isotopes of an element contain
Q. When a piece of pure silicon is doped with aluminium, then
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