Corrective Lenses Conceptual Questions Part A The near point (the smallest dista

Question

Corrective Lenses Conceptual Questions Part A The near point (the smallest distance at which an object can be seen clearly) and the far point (the largest distance at which an object can be seen clearly) are measured for six different people Which, if any, of these people are nearsighted (myopic)? List the first letter of all correct answers in alphabetical order. For example, if Avishka and Edouard are the only nearsighted ones, enter AE Hints near point far point (cm em) 40 30 Chadwick 25 25 80 Francesca 50 Avishka Berenice 300 Submit My Answers Give Up 500 Danya Part B Edouard 200 Which, if any, of these people require bifocals to correct their vision? List th first letter all correct answers in alphabetical order. For example, if Avishka and Edouard are the ones needing bifocals, enter AE Hints Submit My Answers Give Up Part C Which, if any, of these people's vision can be corrected using only converging lenses? List all correct answers in alphabetical order. For example, if Avishka and Edouard are the ones whose vision can be thus corrected, enter AE Submit My Answers Give Up

Explanation / Answer

for a correct sight people

near point = 25 cm

far pooint = infinity

part A

for near sighted people

near point = 25 cm

far point is less than infinity

BCE <<<<---ANSWER

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part B

for people who require bi focals

nearsight > 25 cm

far point < infinity

BE   <<<--------ANSWER

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part C

converging lens is used for people of far sight

near point > 25 cm

far sight = infinity

AF <<<--------ANSWER

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