1-69.
When 26 mc of light are falling
onto a film, but only 7 mc of light
are passed by the film, what
percentage of the incident light
is being transmitted?
1. 19%
2. 27%
3.
37%
4. 41%
1-70.
What is the opacity of a negative
that transmits 1 percent of the
light that falls on it?
1.
100
2.
90
3.
40
4.
30
1-71.
Density,
the light-stopping ability
of a photographic emulsion, is
expressed by which of the following
statements?
1.
Logarithm of transmission
2.
Logarithm of opacity
3.
Reciprocal of opacity
4.
Reciprocal of transmission
1-72.
In sensitometry, you should be most
concerned with what factor?
1.
Incident light
2.
Transmission
3.
Opacity
4.
Density
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