what do u mean by....power
Answers
Answer:
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Power comes from the Latin word potere, which means "to be able." But things with power are much more than able — they're able to exert a lot of force. "The powers that be" are those who hold authority, and "the power behind the throne" refers to the people who exert influence without being formally in charge.
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Answer:
In physics, power is the amount of energy transferred or converted per unit time.
In the International System of Units, the unit of power is the watt, equal to one joule per second.
In older works, power is sometimes called activity.
Power is a scalar quantity.
OR
Power of a lens is defined as the inverse of focal length (in meters) of the lens.
It is a measure of the amount of deviation of light ray produced by a lens, more the power, more is the deviation.
Convex lens has positive power and concave lens has negative power.