# NEET Physics Ray Optics and Optical Instruments Questions Solved

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

(a) Real, and will remain at C

(b) Real, and located at a point between C and $\infty$

(c) Virtual and located at a point between C and O

(d) Real, and located at a point between C and O

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