question_answer

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 \[\alpha \]

C)  virtual and located at a point between C and O. 

D)  real and located at a point between C and O .

Correct Answer: D

Solution :

C = centre of curvature   \[I=\] image When filled with water, Image will be real between C and O.