Physics-
General
Easy
Question
A glass slab of thickness 3 cm and refractive index 1.5 is placed 12 cm from concave lens of focal length 20 cm. A convex lens of focal length 10 cm is placed on the same axis at a distance of 5 cm from the concave lens. An object is located 6 cm in front of glass slab and an observer looks it from the other end of optical train. Where will the object appear to be? What is the magnification of the object?
- 20 cm to the right of convex lens, +1
- 20 cm to the left of convex lens, -1
- 30 cm to the right of convex lens, -1
- 30 cm to the left of convex, +1
The correct answer is: 30 cm to the right of convex lens, -1
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