Question

0. Concave and convex lenses are placed touching
each other. The ratio of magnitudes of their
powers is 2:3. The focal length of the system is 30
cm. Then the focal lengths of individual lenses
are
(a) -75 cm, 50 cm (b) -15 cm, 10 cm
(c) 75 cm, 50 cm
(d) 75 cm, -50 cm​

Answer 1

Answer:

c

Explanation:

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