what is the definetionof the unit \"candela\"? How do we define it? By what? Is

Question

what is the definetionof the unit "candela"? How do we define it? By what? Is "candela" the same physics unit as Watt (the powerunit), only different at one constant? Thanks, I will rate as lifesaver what is the definetionof the unit "candela"? How do we define it? By what? Is "candela" the same physics unit as Watt (the powerunit), only different at one constant? Thanks, I will rate as lifesaver How do we define it? By what? Is "candela" the same physics unit as Watt (the powerunit), only different at one constant? Thanks, I will rate as lifesaver

Explanation / Answer

   S .I unit for Luminous Intensity iscandela I v = 1 candela = 1 cd         Power emitted bylight source in a particular direction is weighted by aluminosity function          For a100 W incadescent bulb emits 120 cd

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