Multiple Choice
The absolute threshold for human vision is a candle flame seen from ______ kilometres on a dark,clear night.
A) 30
B) 40
C) 50
D) 60
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q29: An alien from outer space was just
Q34: The bone that is attached to the
Q147: Any given sense being a constant fraction
Q148: Which of the following is NOT one
Q149: The aspect of colour that corresponds to
Q152: Olfactory receptor cells are located at top
Q154: If an artist were to blend red,green,and
Q155: If you stare at a black/green image
Q156: Vicary's study of subliminal advertising was remarkable
Q248: Which of the following describes what happens