The focal length of the eye lens increases when eye muscles
A. are relaxed and lens becomes thinner
B. contract and lens becomes thicker
C. are relaxed and lens becomes thicker
D. contract and lens becomes thinner
Answer:A
The focal length of the eye lens increases when eye muscles
A. are relaxed and lens becomes thinner B. contract and lens becomes thicker C. are relaxed and lens becomes thicker D. contract and lens becomes thinner