Question

57. Find the position of the object to be placed in front of a convex lens of focal length
0.45 m to obtain an image at a distance of 0.6 m from it.
biect three times.​

Answer 1

Answer:

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Explanation:

Given focal length f=10cm also magnification m=2

We know magnificationm=

u

−v

=>v=−2u------(1)

From lens formula we get

v

1

−

u

1

=

f

1

putting the value found in 1 we get,

−2u

1

−

−u

1

=

−f

1

negative sign given as per sign convention.

2u

1

=

−10

1

u=−5cm