A thin plano-convex lens of focal is split into two halves. One of the halves is shifted along the optical axis. The separation between object and image plane is 1.8 m. The magnification of the image formed by one of the half lens is 2. Find the focal-length of the lens and separation between the two halves

a) |
0.1 m |
b) |
0.4 m |
c) |
0.9 m |
d) |
1 m |

A thin plano-convex lens of focal is split into two halves. One of the halves is shifted along the optical axis. The separation between object and image plane is 1.8 m. The magnification of the image formed by one of the half lens is 2. Find the focal-length of the lens and separation between the two halves

a) |
0.1 m |
b) |
0.4 m |
c) |
0.9 m |
d) |
1 m |

1 Answer - 5876 Votes

3537

This is a modified displacement method problem Here,m and Solving we get m m |