A concave mirror is placed on a horizontal table, with its axis directed vertically upwards. Let O be the pole of the mirror and C its centre of curvature. A point object is placed at C. It has a real image, also located at C. If the mirror is now filled with water, the image will be.

Options

A. Real, and will remain at C
B. Real, and located at a point between C and `oo`
C. Virtual and located at a point between Cand O
D. Real, and located at a point between C and O

Answer

D

Explanation

image is real and will be formed between C and O