Author Question: What power lens is needed to correct for farsightedness where the uncorrected near point is 75 cm? ... (Read 60 times)

Pea0909berry · **on:** Jul 27, 2018

What power lens is needed to correct for farsightedness where the uncorrected near point is 75 cm?

A) -2.67 D
B) +2.67 D
C) +5.33 D
D) -5.33 D
E) +1.00 D

Question 2

A resistance of 55. , a capacitor of capacitive reactance 30. , and an inductor of inductive reactance 30. are connected in series to a 110. V, 60. Hz power source. What current flows in this circuit?

A) 2. A
B) less than 2. A
C) more than 2. A but less than 4. A
D) more than 4. A
E) 4. A