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

NCERT Class X
Science - Exemplar Problems

Chapter_The Human Eye and
the Colourful World

2

Answers

2015-05-31T18:59:05+05:30
The answer is A as the lens get longer and the focal length increases.
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2015-05-31T19:31:21+05:30