A convex lens of focal length 15 cm and a concave mirror of focal length 30 cm are kept with their optic axis PQ and RS parallel but separated in vertical direction by 0.6 cm as shown. The distance between the lens and mirror is 30 cm. An upright object AB of height 1.2 cm is placed on the optic axis PQ of the lens at a distance of 20 cm from the lens. If A^(1)B^(1) is the image after refraction from the lens and the reflection from the mirror, find the distance of A^(1)B^(1) from the pole of the mirror and obtain its magnification. (b) How much part of image A^(1)B^(1) is above RS.

A convex lens of focal length 15 cm and a concave mirror of focal leng

1.	A convex lens of focal length 15 cm and a concave mirror of focal length 30 cm are kept with their optic axis PQ and RS parallel but separated in vertical direction by 0.6 cm as shown. The distance between the lens and mirror is 30 cm. An upright object AB of height 1.2 cm is placed on the optic axis PQ of the lens at a distance of 20 cm from the lens. If A^(1)B^(1) is the image after refraction from the lens and the reflection from the mirror, find the distance of A^(1)B^(1) from the pole of the mirror and obtain its magnification. (b) How much part of image A^(1)B^(1) is above RS.
Answer» SOLUTION : (a) 15 CM, -3/2, (6) 0.3 cm

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