Tag Archives: focal length

An object is placed 30.0 cm before a certain lens and the image is found to be 10.0 cm behind the lens. Calculate the focal length of the lens.

1. An object is placed 30.0 cm before a certain lens and the image is found to be 10.0 cm behind the lens. Calculate the focal length of the lens. 2. For the first row of data in Table 1, calculate the magnification using the measured distances do and di (m = –di/do), and calculate […]