Final answer:
The image of Ishan is formed 0.03 m behind the lens.
Step-by-step explanation:
To determine the distance from the lens where the image of Ishan is produced, we can use the lens equation: 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance.
Given that Ishan's height is 1.6 m and his inverted image height is 1.6 cm, we can calculate the magnification as hi/ = -di/do. Rearranging the equation gives us di = -m * do, where m is the magnification.
Substituting the values given, we get 1/f = 1/3 + 1/di. Solving for di, we find that the image is formed 0.03 m behind the lens. Therefore, the correct answer is (a) 0.03 m.