The muscle fibers of the iris can increase or decrease the amount of light entering the eye by expanding or contracting the

A. lens
B. Cornea
C. pupil
D. fovea

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Light activates receptor cells in the

A. iris
B. retina
C. optic nerve
D. cornea

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In human visual system, light is focused by

A. the cornea
B. the lens
c. the retina
D. both the cornea and retina

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The minimum amount of stimulus energy that can reliably be detected is called

A. The difference threshold
B. The absolute threshold
C. The differential threshold
D. A JND

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detection depends on a person’s

A. Sensory sensitivity
B. Response bias
C. Difference threshold
D. Both a and b

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Minimum and Maximum Numbers of Members of Council of Islamic Ideology (CII) are?

A. 5 and 20
B. 6 and 20
C. 8 and 20
D. None of the Above

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