___________ is a measure of the “whiteness” of paper. These methods are not applied to coloured papers that are characterized with the tests. The ___________ is the % of diffuse reflected light from a thick pad of paper to visible light.

___________ is a measure of the “whiteness” of paper. These method

1.	___________ is a measure of the “whiteness” of paper. These methods are not applied to coloured papers that are characterized with the tests. The ___________ is the % of diffuse reflected light from a thick pad of paper to visible light.
A.	a)Pigment
B.	b)Colour
C.	c)Opacity
D.	d)Brightness
Answer» E.