Theory of relativity reveals that mass can be converted into energy The energy E so obtained is proportional to certain power of mass M and the speed C of light guess a relation among the quantities using the method of dimensions

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Q. Theory of relativity reveals that mass can be converted into energy. The energy E so obtained is proportional to certain powers of mass m and the speed c of light. Guess a relation among the quantities using the method of dimensions.

Q. According to Einstein's theory of relativity, mass can be converted into energy and vice-versa. The lightest elementary particles, taken to be the electron, has a mass equivalent to

0.51 M e V

of energy. Then we can say that

Q. Assertion :Assertion : In a nuclear process mass gets converted into energy. Reason: Reason : According to Einstein's mass energy equivalence relation, mass m is equivalent to energy E, given be the relation

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A wind-powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to

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