Physics-
General
Easy
Question
A container is filled with water
up to a height of 33.25 cm. A concave mirror is placed 15 cm above the water level and the image of an object placed at the bottom is formed 25 cm below the water level. The focal length of the mirror is
- 10 cm
- 15 cm
- 20 cm
- 25 cm
The correct answer is: 20 cm
Distance of object from mirror 
Distance of image from mirror 
For the mirror, 
Most suitable answer is (c).
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