Topic: Ray Optics
Subtopic: Refraction by Spherical Surfaces
A concave spherical surface of radius of curvature 10 cm separates two medium X & Y of refractive index 4/3 & 3/2 respectively. If the object is placed along principal axis in medium X then :

image is real if the object distance is greater than 90 cm
image is virtual if the object distance is less than 90 cm
No solution provided for this question.
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