Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near...

Question

Question

Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near point is 18 cm . Her glasses allow her t

Answer 1

Answer #1

1/f = 1/u +1/v
so f = uv/u+v
here u = 38 cm
v = -18 cm
f = 38*18/(38-18)
f = 34.20 cm

Answer 2

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