Question

44. A concave lens has focal length of 10cm. At what distance should the object from the lens be placed so that it forms an image at 10cm from the lens?​

Answer 1

Answer:

Explanation:

The distance from the lens at which the object is placed so that forms a real and inverted image 20 cm away from the lens is 20 cm. The size of the image formed if the object is 2 cm high is the same as that of the size of the object.