Question

A concave spherical surface of radius of curvature $10\text{cm}$ separates two medium $X$ & $Y$ of refractive index $\frac{4}{3}$ & $\frac{3}{2}$ respectively. If the object is placed along principal axis in medium $X$ then

• A. image is always real
• B. image is real if the object distance is greater than $90\text{cm}$
• C. image is always virtual
• D. image is virtual if the object distance is less than $90\text{cm}$

Answer 1

The correct option is C image is always virtual


Image is always virtual because rays go from rarer to denser medium.