A person whose near point is at uses a convex lens of focal length as a simple magnifier

PHYSICS · Single correct · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

A person whose near point is at

50\,\text{cm}

uses a convex lens of focal length

f = 5\,\text{cm}

as a simple magnifier, holding the lens very close to her eye. Which pair

(p, q)

is correct, where

p

is the object distance from the lens required for the final image to be at infinity and

q

is the angular magnification in that adjustment? (a)

(5\,\text{cm},\;6)

(b)

(10\,\text{cm},\;5)

(c)

(5\,\text{cm},\;10)

(d)

(4\,\text{cm},\;11)