Question:

Which of the following is impractical to measure?

A.

frequency

B.

radiance

C.

luminance

D.

brightness

Answer» d. brightness

Question:

What is brightness adaptation?

A.

changing the eye’s overall sensitivity

B.

changing the eye’s imaging ability

C.

adjusting the focal length

D.

transition from scotopic to photopic vision

Answer» a. changing the eye’s overall sensitivity

Question:

Range of light intensity levels to which the human eye can adapt (in Log of Intensity-mL)

A.

10-6 to 10-4

B.

104 to 106

C.

10-6 to 104

D.

10-5 to 105

Answer» c. 10-6 to 104