Which one of the following quantities forms the basis of radiometery?

1.	Which one of the following quantities forms the basis of radiometery?
A.	Radiant energy (Q)
B.	Radiant flux (œÜ)
C.	Radiant intensity (I)
D.	Radiance (L)
Answer» E.

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Which one of the following quantities forms the basis of radiometery?

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