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1. |
Direction: A point object O is placed at the origin of coordinate system. An equi-convex thin lens\[({{\mu }_{g}}=1.5)\] of focal length \[f=20\,cm\]in air is placed so that its principal axis is along x-axis. Now the lens is cut at the middle (along the principal axis) and upper half is shifted along x-axis and y-axis by 20 cm and 2 mm respectively and right side of lower half is filled with water \[({{\mu }_{\omega }}=4/3)\]Coordinates of the image produced by the lens \[{{L}_{2}}\] will be |
A. | 140 cm, 0 |
B. | 140 cm, 20 |
C. | 70 cm, 0 |
D. | 140 cm, 30 |
Answer» B. 140 cm, 20 | |