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1. What do you mean by luminous intensity?
a. Luminous intensity is the measure of the , by a light source in a particular direction, per unit .
b. is the unit of luminous intensity, and it is denoted as .
Measuring device:
A , also known as , is a device used to measure the luminous intensity in terms of candela.
2. Define - Mole.
a. Mole is defined as the that contains \(× 10^{23}\) entities or particles.
b. The given value is known as . The unit is denoted as .
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