The plane faces of two identical plano-convex lenses each having a focal length of 50 cm are placed against each other to form a usual biconvex lens. The distance from this lens combination at which an object must be placed to obtain a real, inverted image which has the same size as the object is |
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a) |
50 cm |
b) |
25 cm |
c) |
100 cm |
d) |
40 cm |
The plane faces of two identical plano-convex lenses each having a focal length of 50 cm are placed against each other to form a usual biconvex lens. The distance from this lens combination at which an object must be placed to obtain a real, inverted image which has the same size as the object is |
|||||||
a) |
50 cm |
b) |
25 cm |
c) |
100 cm |
d) |
40 cm |
(a) The focal length of combination is Given, Object when placed at center of curvature forms a real, inverted image of same size as object = (2 |