Question 1 Report
To obtain a magnification of 2.5, how far should an object be placed from the pole of a thin converging lens of focal length 10.20m?
Answer Details
v = 2.5u
F = uvu+v u v u + v
0.2 = u×2.5uu+2.5u u × 2.5 u u + 2.5 u
u = 0.28m