Question

ng from
rom the
surface.
130. A point object is placed at a distance of 20 cm from a thin
planoconvex lens of focal length 30 cm. If the plane sur-
face is silvered. The image will form at -
20cm-
(1) 60 сm from left of AB
(2) 30 cm from left of AB
(3) 12 cm from left of AB
(4) 60 сm from right of AB
Orucing​

Answer 1

Explanation:

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