Q. 30 A4.8( 5 Votes )
At what dis
Image distance, v = −d = −25 cm
Focal length, f = 10 cm
Object distance = u
When the image is formed at the near point or at the minimum distance of distinct vision, we get the maximum possible magnification.
Applying the lens formula we have:
Where, f0 = focal length of the objective lens
v0 = Distance of image formation
u0 = Distance of object from objective
Putting values in the equation (1) we get,
⇒ u = -50/7
⇒ u = -7.14 cm
Hence, the lens should be kept 7.14 cm away in order to view the squares distinctly.
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