The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is least distance of distinct vision is 25 cm

Question

The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is least distance of distinct vision is 25 cm (A) 10 (B)  0.1  (C) 62.5 (D) 11

Tardigrade Admin · Accepted Answer

Maximum magnification is obtained when image is formed at near point of eye. In that case m=1+(D/f) =1+(25/2.5)=11

Q. The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is least distance of distinct vision is 25 cm

10

$0.1$

62.5

11

Maximum magnification is obtained when image is formed at near point of eye. In that case
$m = 1 + \frac{D}{f}$ $= 1 + \frac{25}{2.5} = 11$

Q. The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is least distance of distinct vision is 25 cm

10

0.1

62.5

11

Maximum magnification is obtained when image is formed at near point of eye. In that case m=1+fD​ =1+2.525​=11

$0.1$

Maximum magnification is obtained when image is formed at near point of eye. In that case
$m = 1 + \frac{D}{f}$ $= 1 + \frac{25}{2.5} = 11$