Question

1. A glass rod (n=1.6) is immersed in oil (n=1.45) an object placed to the left on the rod's axis is to be imaged 1.20 m inside the rod. How far from the left end of the rod must the object be located to form the image?

2. Determine distance and height of the image formed when an object of height 20cm and a distance of 20cm is placed in front of a concave surface with n=1.45 (note: use n(air) 1.00029)?