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A hypermetrophia person near point Is …

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A hypermetrophia person near point Is 75 cm he uses a lens of 100cm focal length find its farthest point 

  • 1 answers

Geeta Geeta 6 years, 10 months ago

near point = 75cm

f= 100 cm

f= x- d / x- - d

100= 75x- / x- - 75

100x- - 7500 = 75x-

100x- - 75x- =7500

25x- = 7500

x= 7500 / 25 = 300cm

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