A converging lens of focal length f is placed just above a water surface parallel to the surface without touching it. A point source of light S is placed inside the water vertically before the lens at a depth f from it. This arrangement will produce:
Answer & explanation
Correct answer: option 3
Due to refraction at water-air interface, the object is at a distance less than the focal length of the lens, Thus, a virtual image is created inside water.