Presentasi 4DX |

power 4dWith our 4DX PowerPoint template, you'll receive all the integral information about the four discips and a wide selection of templates to introduce the 4DX in your company. PresentTwo lenses have power of (i) + 2 d (ii) -4D. What is the nature and focal length of each lens? b. An object is kept at a distance of 100 cm from lens of power -4D. Calculate the image distance.